CN203629802U - Forward flow test tool for micro hole in control valve - Google Patents
Forward flow test tool for micro hole in control valve Download PDFInfo
- Publication number
- CN203629802U CN203629802U CN201320774377.3U CN201320774377U CN203629802U CN 203629802 U CN203629802 U CN 203629802U CN 201320774377 U CN201320774377 U CN 201320774377U CN 203629802 U CN203629802 U CN 203629802U
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- reinforcing sleeve
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- measurement
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Abstract
The utility model discloses a forward flow test tool for a micro hole in a control valve, which comprises a positioning sleeve and a reinforcing sleeve. The positioning sleeve and the reinforcing sleeve are provided with coaxial inner holes. The outer ring of the positioning sleeve is provided with a stabilizing ring. The positioning sleeve is separated into a connecting section and a positioning section by means of the stabilizing ring. The connecting section is arranged to penetrate into the reinforcing sleeve. The connecting section is internally provided with a positioning slot for accommodating the large-circle section of a to-be-tested workpiece. The positioning slot is communicated with the inner hole in the positioning sleeve. The small-circle section of the to-be-tested workpiece is arranged to pass through the inner hole in the reinforcing sleeve to be exposed outside the reinforcing sleeve. The upper inner wall of the reinforcing sleeve is provided with a first sealing slot and a first sealing ring both matched with the small-circle section of the to-be-tested workpiece. The lower inner wall of the reinforcing sleeve is provided with a second sealing slot and a second sealing ring both matched with the outer wall of the connecting section. According to the technical scheme of the utility model, the forward flow test tool is good in sealing effect, stable in oil way, high in working stability, and accurate in measurement result. Meanwhile, the occurrence of oil-leaking and oil-spraying phenomena can be prevented. The testing efficiency is improved and the testing effect is better. The testing cost is lowered.
Description
Technical field
The utility model relates to a kind of frock clamp, relates in particular to micropore positive flow amount test fixture in a kind of operation valve.
Background technology
In operation valve, micropore forward flow rate test is a kind of common operation valve quality testing test; at present common frock clamp usually can cause high-pressure oil passage to leak because sealing is good not in micropore forward flow in test operation valve; even can produce the phenomenon of oil spout; thereby affect measuring accuracy, improve and measure cost.
Utility model content
Defect and deficiency that the utility model exists in order to solve above-mentioned prior art, provide a kind of guaranteeing under the prerequisite of sealing effectiveness, simple in structure, easy to operate, and micropore positive flow amount test fixture in the operation valve of long service life.
The technical solution of the utility model: micropore positive flow amount test fixture in a kind of operation valve, comprise the locating sleeve and the reinforcing sleeve that contain coaxial inner, described reinforcing sleeve is inverted U, described locating sleeve outer ring is provided with firm circle, locating sleeve is divided into linkage section and positioning section by described firm circle, described linkage section penetrates in reinforcing sleeve, described positioning section and worktable closely cooperate, in described linkage section, be provided with the locating slot that holds workpiece for measurement great circle section, described locating slot is communicated with locating sleeve endoporus, workpiece for measurement roundlet section is exposed to outside reinforcing sleeve through the endoporus of reinforcing sleeve, described reinforcing sleeve upper inside wall is provided with the first seal groove and the first O-ring seal that coordinate workpiece for measurement roundlet section, reinforcing sleeve lower inner wall is provided with the second seal groove and second O-ring seal of the section of being connected outer wall, described locating slot bottom is provided with the cushion seal pad that coordinates workpiece for measurement, in described cushion seal pad, be provided with the through hole that is communicated with micropore and locating sleeve endoporus in workpiece for measurement.
The utility model on reinforcing sleeve, is provided with the first O-ring seal and the second O-ring seal has guaranteed the cylindrical sealing of frock to workpiece for measurement, and hydraulic oil can be affected by micropore flow rate test from the outflow of side micropore makes.Positioning action is not only played in the setting of cushion seal pad, also sealing function has been played in the end face outside of workpiece great circle section; Also workpiece and frock are had to protective effect, under high pressure conditions, can not produce unnecessary damage to frock and workpiece simultaneously.
Preferably, the cooperation place, outer ring of described locating slot and workpiece for measurement great circle section is 14.3D9/js5 clearance fit, and the degree of depth of locating slot is greater than the length of workpiece for measurement great circle section.
Preferably, described reinforcing sleeve and workpiece for measurement roundlet section cooperation place are 8.19F8/h6 clearance fit.
Preferably, described cushion seal pad is nylon cushion.
When the utility model assembling, first the first O-ring seal and the second O-ring seal are contained in respectively in first seal groove and the second seal groove of reinforcing sleeve, then nylon cushion is put into locating slot, again the end face of workpiece for measurement great circle section is placed on nylon cushion, load onto the reinforcing sleeve that O-ring seal is housed, be loaded on connector, assembling completes.
When the utility model uses, frock is put into worktable, the positioning section lower end of locating sleeve is stretched with worktable endoporus and is closely cooperated; The cylinder that flowmeter pressure head is equipped with on grinding machine equipment top moves downward and is pressed on reinforcing sleeve under set pressure, until the workpiece for measurement on compression nylon cushion, after compressing, diesel oil flows into workpiece for measurement endoporus from pressure head endoporus, flow out workpiece through micropore in workpiece for measurement, the worktable that therefrom flows into recyclable diesel oil after micropore outflow by the endoporus of locating sleeve, recycles.
The utility model is under 10Mpa oil pressure, and job stability is high, does not occur oil leakage phenomenon, and product test data are accurate.
The utility model good sealing effect, oil circuit is stable, thus job stability is high, has guaranteed the accuracy of measurement result, can prevent leakage of oil and fuel injection event simultaneously, improves testing efficiency, improves test effect, reduces testing cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1. locating sleeves in figure, 2. reinforcing sleeve, 3. workpiece for measurement, 4. firmly encloses 5. linkage section, 6. positioning section, 7. locating slot, 8. side micropore, 9. in micropore, 10. flowmeter pressure head, 11. first O-ring seals, 12. first seal grooves, 13. second O-ring seals, 14. second seal grooves, 15. cushion seal pads.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, but is not the restriction to the utility model protection domain.
As shown in Figure 1, micropore positive flow amount test fixture in a kind of operation valve, comprise the locating sleeve 1 and the reinforcing sleeve 2 that contain coaxial inner, reinforcing sleeve 2 is inverted U, locating sleeve 1 outer ring is provided with firm circle 4, locating sleeve 1 is divided into linkage section 5 and positioning section 6 by firm circle 4, linkage section 5 penetrates in reinforcing sleeve 2, positioning section 6 closely cooperates with worktable, in linkage section 5, be provided with the locating slot 7 that holds workpiece for measurement 3 great circle sections, locating slot 7 is communicated with locating sleeve 1 endoporus, workpiece for measurement 3 roundlet sections are exposed to outside reinforcing sleeve 2 through the endoporus of reinforcing sleeve 2, reinforcing sleeve 2 upper inside wall are provided with the first seal groove 12 and the first O-ring seal 11 that coordinate workpiece for measurement 3 roundlet sections, reinforcing sleeve 2 lower inner wall are provided with the second seal groove 14 and second O-ring seal 13 of the section of being connected 5 outer walls, locating slot 7 bottoms are provided with the cushion seal pad 15 that coordinates workpiece for measurement 3, in cushion seal pad 15, be provided with the through hole that is communicated with micropore 9 and locating sleeve 1 endoporus in workpiece for measurement 3.
Locating slot 7 is 14.3D9/js5 clearance fit with the cooperation place, outer ring of workpiece for measurement 3 great circle sections, and the degree of depth of locating slot 7 is greater than the length of workpiece for measurement 3 great circle sections.Reinforcing sleeve 2 is 8.19F8/h6 clearance fit with workpiece for measurement 3 roundlet section cooperation places.Cushion seal pad 15 is nylon cushion.
The utility model good sealing effect, oil circuit is stable, thus job stability is high, has guaranteed the accuracy of measurement result, can prevent leakage of oil and fuel injection event simultaneously, improves testing efficiency, improves test effect, reduces testing cost.
Claims (4)
1. micropore positive flow amount test fixture in an operation valve, it is characterized in that: it comprises the locating sleeve and the reinforcing sleeve that contain coaxial inner, described reinforcing sleeve is inverted U, described locating sleeve outer ring is provided with firm circle, locating sleeve is divided into linkage section and positioning section by described firm circle, described linkage section penetrates in reinforcing sleeve, described positioning section and worktable closely cooperate, in described linkage section, be provided with the locating slot that holds workpiece for measurement great circle section, described locating slot is communicated with locating sleeve endoporus, workpiece for measurement roundlet section is exposed to outside reinforcing sleeve through the endoporus of reinforcing sleeve, described reinforcing sleeve upper inside wall is provided with the first seal groove and the first O-ring seal that coordinate workpiece for measurement roundlet section, reinforcing sleeve lower inner wall is provided with the second seal groove and second O-ring seal of the section of being connected outer wall, described locating slot bottom is provided with the cushion seal pad that coordinates workpiece for measurement, in described cushion seal pad, be provided with the through hole that is communicated with micropore and locating sleeve endoporus in workpiece for measurement.
2. micropore positive flow amount test fixture in a kind of operation valve according to claim 1, it is characterized in that: the cooperation place, outer ring of described locating slot and workpiece for measurement great circle section is 14.3D9/js5 clearance fit, and the degree of depth of locating slot is greater than the length of workpiece for measurement great circle section.
3. micropore positive flow amount test fixture in a kind of operation valve according to claim 1, is characterized in that: described reinforcing sleeve and workpiece for measurement roundlet section cooperation place are 8.19F8/h6 clearance fit.
4. micropore positive flow amount test fixture in a kind of operation valve according to claim 1, is characterized in that: described cushion seal pad is nylon cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320774377.3U CN203629802U (en) | 2013-12-02 | 2013-12-02 | Forward flow test tool for micro hole in control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320774377.3U CN203629802U (en) | 2013-12-02 | 2013-12-02 | Forward flow test tool for micro hole in control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629802U true CN203629802U (en) | 2014-06-04 |
Family
ID=50816268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320774377.3U Expired - Fee Related CN203629802U (en) | 2013-12-02 | 2013-12-02 | Forward flow test tool for micro hole in control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553694A (en) * | 2019-10-09 | 2019-12-10 | 无锡威孚马山油泵油嘴有限公司 | Piston sleeve micropore flow measurement frock |
-
2013
- 2013-12-02 CN CN201320774377.3U patent/CN203629802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553694A (en) * | 2019-10-09 | 2019-12-10 | 无锡威孚马山油泵油嘴有限公司 | Piston sleeve micropore flow measurement frock |
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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 |
Granted publication date: 20140604 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |