CN201749012U - Testing device for detecting sealing performance of oil outlet valve coupler - Google Patents
Testing device for detecting sealing performance of oil outlet valve coupler Download PDFInfo
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- CN201749012U CN201749012U CN2010202313652U CN201020231365U CN201749012U CN 201749012 U CN201749012 U CN 201749012U CN 2010202313652 U CN2010202313652 U CN 2010202313652U CN 201020231365 U CN201020231365 U CN 201020231365U CN 201749012 U CN201749012 U CN 201749012U
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- pressure head
- sliding panel
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- matching parts
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Abstract
The utility model relates to a testing device for detecting the sealing performance of an oil outlet valve coupler, which comprises a bottom plate, two vertical columns, an upper cover plate, a cylinder, a connecting plate, a sliding plate, a pressure head, a gas header, a gas leakage detection device, a base, a ventilation pipe and ventilation equipment. A second through hole is arranged in the pressure head, the upper end of the second through hole is provided with an upper washer, and a first seal ring is arranged between the pressure head and the sliding plate. The side end of the pressure head is provided with a gas collection chamber, and the gas collection chamber is communicated with the gas header and the second through hole. The gas header is connected with the gas leakage detection device. The lower surface of the pressure head is provided with a third seal ring. The upper part of the base is provided with a groove, and the lower part of the groove is provided with a lower washer. One end of the ventilation pipe is connected with a third through hole, and the other end of the ventilation pipe is connected with the ventilation equipment. The device can detect the sealing performance between an oil outlet valve body and an oil outlet valve seat. Particularly, the gas leakage detection device comprises a water container, a dripping pipe and a second meter, and can accurately judge if the oil outlet valve coupler meets the technical requirements.
Description
Technical field
The utility model relates to a kind of test unit that is used to detect the component of machine sealing property, specifically, relates to a kind of test unit that is used to detect the valve matching parts sealing.
Background technology
Delivery valve matching parts is the vitals in the diesel fuel injection system, its effect is that the high-pressure diesel that will be provided by plunger matching parts transfers to injector assembly, when plunger matching parts stops supplying, high-pressure oil pipe and plunger upper end cavity is isolated, prevent that the oil in the high-pressure oil pipe from blowing back in the plunger matching parts.Delivery valve matching parts need carry out the conical surface seal detection, and its meaning is the fuel oil that guarantees to leave in the high-pressure oil pipe certain pressure, prevents that fuel oil from passing through the conical surface inflow plunger matching parts of even part, thereby guarantees that the diesel oil function runs well.Therefore, it is very necessary the sealing property of delivery valve matching parts being detected.
The utility model content
Technical problem to be solved in the utility model provides a kind of test unit that is used to detect the valve matching parts sealing, accurately to detect the sealing property of delivery valve matching parts, guarantees its normal use in mechanical part.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of test unit that is used to detect the valve matching parts sealing is characterized in that, comprises base plate, two columns, upper cover plate, cylinder, web joint, sliding panel, pressure head, discharge, gas leakage detection device, base, snorkel and aeration equipments; Fixedlying connected with base plate in the bottom of described two columns, is provided with first through hole between the upper surface of this base plate and the lower surface; Fixedly connected with upper cover plate in the top of these two columns; This upper cover plate is fixedly connected with a cylinder, and the piston rod on this cylinder passes the through hole on the upper cover plate, extends downwards; Fixedly connected with the upper end of web joint in the lower end of this piston rod; Fixedly connected with the upper surface of sliding panel in the lower end of this web joint; The two ends of this sliding panel are provided with a pilot hole respectively, and this pilot hole matches with column respectively, and sliding panel is moved up and down along column; The lower surface of this sliding panel is fixedlyed connected with the upper surface of pressure head; Be provided with the upper surface of connection pressure head and second through hole of lower surface in this pressure head, upper end at second through hole is provided with upper gasket, between the lower surface of the upper surface of this pressure head and sliding panel, be provided with first O-ring seal, and this first O-ring seal is positioned at the periphery of second through hole; The side of this pressure head is provided with air collecting chamber, this air collecting chamber connected set tracheae and second through hole; This discharge is connected with gas leakage detection device; The lower surface of this pressure head is provided with second O-ring seal, and this second O-ring seal is positioned at the periphery of second through hole; The upper surface of this base plate is fixedlyed connected with the lower surface of base; The top of this base is provided with groove, this groove bottom is provided with lower gasket, the lower surface of this groove is provided with third through-hole between the lower surface of base, this third through-hole is communicated with first through hole on the base plate, one end of this snorkel passes first through hole, be connected with third through-hole, the other end of this snorkel is connected with aeration equipment.
Described gas leakage detection device comprises the container, buret and the stopwatch that are filled with water; This buret is arranged in container, and the one end stretches out the water surface, and is connected with discharge; Its other end is positioned at the underwater.
Adopt the technical solution of the utility model, by being connected of base plate, two columns, upper cover plate, cylinder, web joint, sliding panel, pressure head, discharge, gas leakage detection device, base, snorkel and aeration equipments, can detect the sealing between fuel-displaced valve body and the delivery valve seat.Especially gas leakage detection device comprises the container, buret and the stopwatch that are filled with water.This buret is arranged in container, and the one end stretches out the water surface, and is connected with discharge; Its other end is positioned at the underwater.Utilize manual time-keeping, check in the certain hour, the fall of liquid level in the buret can accurately calculate the gas leakage rate of delivery valve matching parts, and then can judge accurately whether this delivery valve matching parts meets technical requirement.
Description of drawings
Fig. 1 is a cut-open view of the present utility model.
Fig. 2 is the cut-open view of the delivery valve matching parts that is applied in the utility model.
Fig. 3 is the assembling synoptic diagram of a kind of gas leakage detection device in the utility model.
Fig. 4 is the assembling synoptic diagram of another kind of gas leakage detection device in the utility model.
Among the figure, 1, base plate, 100, first through hole, 2, column, 3, upper cover plate, 4, cylinder, 401, piston rod, 5, web joint, 6, sliding panel, 7, pressure head, 701, second through hole, 702, upper gasket, 703, air collecting chamber, 704, second O-ring seal, 705, cushion block, 8, discharge, 9, gas leakage detection device, 10, base, 101, groove, 102, lower gasket, 103, third through-hole, 11, snorkel, 12, aeration equipment, 13, first lining, 14, second lining, 15, fuel-displaced valve body, 1501, first end face, 1,502 second end faces, 16, delivery valve seat, 17, container, 18, buret.
Embodiment
As shown in Figure 1, a kind of test unit that is used to detect the valve matching parts sealing of the present utility model comprises base plate 1, two columns 2, upper cover plate 3, cylinder 4, web joint 5, sliding panel 6, pressure head 7, discharge 8, gas leakage detection device 9, base 10, snorkel 11 and aeration equipments 12.Fixedly connected with base plate 1 in the bottom of two columns 2.Connection between the two can be adopted mechanical connection manner commonly used, and for example bolt connects.Be provided with first through hole 100 between the upper surface of base plate 1 and the lower surface.Fixedly connected with upper cover plate 3 in the top of two columns 2.A through hole is arranged in the upper cover plate 3, and this through hole is vertically arranged, is communicated with the upper surface and the lower surface of upper cover plate 3.The end face of upper cover plate 3 is fixedly connected with a cylinder 4, and the piston rod 401 on this cylinder 4 passes the through hole on the upper cover plate 3, extends downwards.Fixedly connected with the upper end of web joint 5 in the lower end of piston rod 401.Fixedly connected with the upper surface of sliding panel 6 in the lower end of web joint 5.The two ends of sliding panel 6 are provided with a pilot hole respectively.This pilot hole matches with two columns 2 respectively, and sliding panel 6 is moved up and down along column 2.The lower surface of sliding panel 6 is fixedlyed connected with the upper surface of pressure head 7.Be provided with the upper surface of connection pressure head 7 and second through hole 701 of lower surface in the pressure head 7.The upper end of second through hole 701 is provided with upper gasket 702.Be provided with first O-ring seal 706 between the lower surface of the upper surface of pressure head 7 and sliding panel 6, and first O-ring seal 706 is positioned at the periphery of second through hole 701.The side of pressure head 7 is provided with air collecting chamber 703.The air collecting chamber 703 connected set tracheaes 8 and second through hole 701.Discharge 8 is connected with gas leakage detection device 9.The lower surface of pressure head 7 is provided with second O-ring seal 704.Second O-ring seal 704 is positioned at the periphery of second through hole 701.The upper surface of base plate 1 is fixedlyed connected with the lower surface of base 10.The top of base 10 is provided with groove 101, and these groove 101 bottoms are provided with lower gasket 102.The lower surface of groove 101 is provided with third through-hole 103 between the lower surface of base 10.Third through-hole 103 is communicated with first through hole 100 on the base plate 1.One end of this snorkel 11 passes first through hole 100, is connected with third through-hole 103, and the other end of this snorkel 11 is connected with aeration equipment 12.
Fig. 2 is the sectional view of workpiece detected in this patent.Delivery valve matching parts comprises fuel-displaced valve body 15 and delivery valve seat 16, and fuel-displaced valve body 15 comprises first end face 1501 and second end face 1502.Being the conical surface between fuel-displaced valve body 15 and the delivery valve seat 16 connects.The sealing detection of this patent is exactly to detect the sealing that this conical surface connects.Use the method for this patent to be: the first step: delivery valve matching parts to be installed, and to be allowed cylinder 4 clamp delivery valve matching parts.Between the groove 101 and second through hole 701 in the pressure head 1 of delivery valve matching parts in base 10.Piston rod 401 on the cylinder 4 moves down, and second end face 1502 of delivery valve body 15 is contacted with upper gasket 702, and the snap-in force with between the two prevents gas leak; The end face of delivery valve seat 16 is contacted with second O-ring seal 704, and the snap-in force with between the two prevents gas leak; The bottom surface of delivery valve seat 16 is contacted with lower gasket 102.Second step: open aeration equipment 12, to pick-up unit ventilation certain hour.The 3rd step: observe gas leakage detection device 9, whether gas leak is arranged.The 4th step: stop ventilation, cylinder 4 moves upward, and takes out delivery valve matching parts.
The principle of work of this patent is: because the pressuring action of first sealing, 704 and second O-ring seal 706, detected gas can not revealed from pressure head 7 peripheries.If the sealing between fuel-displaced valve body 15 and the delivery valve seat 16 is good, then do not have leakage gas between the two, gas just can not enter in the discharge 8 yet.If the sealing between fuel-displaced valve body 15 and the delivery valve seat 16 is poor, then leakage gas between the two can enter in second through hole 701 of pressure head 7, and then flows into successively in air collecting chamber 703, discharge 8 and the gas leakage detection device 9.
Gas leakage detection device 9 described in this patent as shown in Figure 3, comprises the container 17 that fills water, and an end of discharge 8 inserts the underwater of this container 17.As detected gas when air collecting chamber 703 flows to the discharge 8, the detected gas of discharge 8 bubble of in container 17, can emerging.When not having detected gas when air collecting chamber 703 flows to the discharge 8, the water surface in the container 17 is tranquil.
For accurately calculating the amount of leakage of gas, as shown in Figure 4, gas leakage detection device 9 comprises the container 17, buret 18 and the stopwatch that are filled with water.This buret 18 is arranged in container 17, and the one end stretches out the water surface, and should be connected with discharge 8 by end.The other end of buret 18 is positioned at the underwater.When opening aeration equipment 12, open stopwatch simultaneously, calculate certain hour, 10 seconds for example, the height that the water surface descends in the buret 18, and then whether the leakage rate that calculates gas meets the technical requirement of delivery valve matching parts.
As a kind of improvement, second through hole 701 in the pressure head 7 also comprises cushion block 705 except comprising upper gasket 702, and this cushion block 705 is between upper gasket 702 tops and second through hole, 701 tops.By cushion block 705 is set, can with the fuel-displaced valve body 15 of upper gasket 702 common workpiece pressings, the size of snap-in force is determined by the thickness of cushion block 705.
Improve as another kind, lower gasket 102 is the Cowhells packing ring, and this lower gasket 102 has cavity, the third through-hole 103 on this cavity communication groove 101 and the base 10.The setting of this cavity helps detected gas and enters the delivery valve seat 16 from aeration equipment 12 rapidly.
Firm at base 10 for ease of delivery valve seat 16, damage is arranged first lining 13 at groove 101 inwalls of base 10 when avoiding delivery valve seat 16 to contact with base 10 simultaneously, and this first lining 13 is an annular, and its lateral surface and groove 101 inwalls fit.The lower end and lower gasket 102 outer rims of first lining, 13 medial surfaces fit.
For the pilot hole wall of avoiding sliding panel 6 to match with column 2 damages, in the pilot hole inwall at sliding panel 6 two ends, arrange one second lining 14 respectively in moving process.This second lining 14 is fixedly connected on respectively in the pilot hole inwall at sliding panel 6 two ends, and, the removable contact between second lining, 14 inwalls and column 2 outer walls.Because be furnished with pressure head 7 and web joint 5 on the sliding panel 6, their weight is bigger.For guaranteeing between sliding panel 6 and the column 2 rational friction force is arranged, the height of second lining 14 is greater than the height of sliding panel 6.Can guarantee the stability that leads like this.
Claims (8)
1. test unit that is used to detect the valve matching parts sealing, it is characterized in that, comprise base plate (1), two columns (2), upper cover plate (3), cylinder (4), web joint (5), sliding panel (6), pressure head (7), discharge (8), gas leakage detection device (9), base (10), snorkel (11) and aeration equipment (12);
Fixedlying connected with base plate (1) in the bottom of described two columns (2), is provided with first through hole (100) between upper surface of this base plate (1) and the lower surface; Fixedly connected with upper cover plate (3) in the top of these two columns (2); This upper cover plate (3) is fixedly connected with a cylinder (4), and the piston rod (401) on this cylinder (4) passes the through hole on the upper cover plate (3), extends downwards; Fixedly connected with the upper end of web joint (5) in the lower end of this piston rod (401); Fixedly connected with the upper surface of sliding panel (6) in the lower end of this web joint (5); The two ends of this sliding panel (6) are provided with a pilot hole respectively, and this pilot hole matches with column (2) respectively, and sliding panel (6) is moved up and down along column (2); The lower surface of this sliding panel (6) is fixedlyed connected with the upper surface of pressure head (7); Be provided with the upper surface of connection pressure head (7) and second through hole (701) of lower surface in this pressure head (7), be provided with upper gasket (702) in the upper end of second through hole (701), between the lower surface of the upper surface of this pressure head (7) and sliding panel (6), be provided with first O-ring seal (706), and this first O-ring seal (706) is positioned at the periphery of second through hole (701); The side of this pressure head (7) is provided with air collecting chamber (703), this air collecting chamber (703) connected set tracheae (8) and second through hole (701); This discharge (8) is connected with gas leakage detection device (9); The lower surface of this pressure head (7) is provided with second O-ring seal (704), and this second O-ring seal (704) is positioned at the periphery of second through hole (701); The upper surface of this base plate (1) is fixedlyed connected with the lower surface of base (10); The top of this base (10) is provided with groove (101), this groove (101) bottom is provided with lower gasket (102), the lower surface of this groove (101) is to being provided with third through-hole (103) between the lower surface of base (10), this third through-hole (103) is communicated with first through hole (100) on the base plate (1), one end of this snorkel (11) passes first through hole (100), be connected with third through-hole (103), the other end of this snorkel (11) is connected with aeration equipment (12).
2. according to the described test unit that is used to detect the valve matching parts sealing of claim 1, it is characterized in that described gas leakage detection device (9) comprises the container (17) that fills water, an end of discharge (8) inserts the underwater in this container.
3. according to the described test unit that is used to detect the valve matching parts sealing of claim 1, it is characterized in that described gas leakage detection device (9) comprises the container (17), buret (18) and the stopwatch that are filled with water; This buret (18) is arranged in container (17), and the one end stretches out the water surface, and is connected with discharge (8); Its other end is positioned at the underwater.
4. according to any one described test unit that is used to detect the valve matching parts sealing in the claim 1 to 3, it is characterized in that, also comprise cushion block (705), this cushion block (705) is positioned between upper gasket (702) top and second through hole (701) top.
5. according to the described test unit that is used to detect the valve matching parts sealing of claim 4, it is characterized in that, described lower gasket (102) is the Cowhells packing ring, and this lower gasket (102) has cavity, the third through-hole (103) on this cavity communication groove (101) and the base (10).
6. according to the described test unit that is used to detect the valve matching parts sealing of claim 5, it is characterized in that, also comprise first lining (13), this first lining (13) is an annular, and its lateral surface and groove (101) inwall is fitted.
7. according to the described test unit that is used to detect the valve matching parts sealing of claim 6, it is characterized in that, also comprise second lining (14), this second lining (14) has two, be fixedly connected on respectively in the pilot hole inwall at sliding panel (6) two ends, and, the removable contact between second lining (14) inwall and column (2) outer wall.
8. according to the described test unit that is used to detect the valve matching parts sealing of claim 7, it is characterized in that the height of described second lining (14) is greater than the height of sliding panel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202313652U CN201749012U (en) | 2010-06-21 | 2010-06-21 | Testing device for detecting sealing performance of oil outlet valve coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202313652U CN201749012U (en) | 2010-06-21 | 2010-06-21 | Testing device for detecting sealing performance of oil outlet valve coupler |
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| Publication Number | Publication Date |
|---|---|
| CN201749012U true CN201749012U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202313652U Expired - Lifetime CN201749012U (en) | 2010-06-21 | 2010-06-21 | Testing device for detecting sealing performance of oil outlet valve coupler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858818A (en) * | 2010-06-21 | 2010-10-13 | 南通星维油泵油嘴有限公司 | Testing device for detecting sealing property of delivery valve matching parts |
| CN103556984A (en) * | 2013-10-26 | 2014-02-05 | 山东陆海威尔德石油科技有限公司 | Detection method of sealing property of valve head and valve seat of wireless inclinometer while drilling |
| CN104142217A (en) * | 2014-08-12 | 2014-11-12 | 天津格特斯检测设备技术开发有限公司 | Rapid seal test device and method used for hose with hinged connector |
| CN104777005A (en) * | 2015-03-18 | 2015-07-15 | 成都飞机工业（集团）有限责任公司 | Testing device for pneumatic riveter |
| CN104931206A (en) * | 2014-03-19 | 2015-09-23 | 温州奔龙自动化科技有限公司 | Oxygen sensor airtightness testing device |
-
2010
- 2010-06-21 CN CN2010202313652U patent/CN201749012U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858818A (en) * | 2010-06-21 | 2010-10-13 | 南通星维油泵油嘴有限公司 | Testing device for detecting sealing property of delivery valve matching parts |
| WO2011160317A1 (en) * | 2010-06-21 | 2011-12-29 | 南通星维油泵油嘴有限公司 | Testing device for detecting leakage of oil outlet valve coupled parts |
| CN103556984A (en) * | 2013-10-26 | 2014-02-05 | 山东陆海威尔德石油科技有限公司 | Detection method of sealing property of valve head and valve seat of wireless inclinometer while drilling |
| CN104931206A (en) * | 2014-03-19 | 2015-09-23 | 温州奔龙自动化科技有限公司 | Oxygen sensor airtightness testing device |
| CN104931206B (en) * | 2014-03-19 | 2018-04-06 | 浙江奔龙自动化科技有限公司 | A kind of lambda sensor air-tightness detection device |
| CN104142217A (en) * | 2014-08-12 | 2014-11-12 | 天津格特斯检测设备技术开发有限公司 | Rapid seal test device and method used for hose with hinged connector |
| CN104777005A (en) * | 2015-03-18 | 2015-07-15 | 成都飞机工业（集团）有限责任公司 | Testing device for pneumatic riveter |
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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: 20110216 Effective date of abandoning: 20110928 |