CN108061657A - A kind of engine valve oil seal detection device - Google Patents
A kind of engine valve oil seal detection device Download PDFInfo
- Publication number
- CN108061657A CN108061657A CN201711393106.2A CN201711393106A CN108061657A CN 108061657 A CN108061657 A CN 108061657A CN 201711393106 A CN201711393106 A CN 201711393106A CN 108061657 A CN108061657 A CN 108061657A
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- oil seal
- valve oil
- measuring rod
- casing
- detection device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- General Physics & Mathematics (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A kind of engine valve oil seal detection device, belong to engine valve oil seal installation detection technique field, the valve oil seal detection device, it is characterized in that, including casing, the measuring rod being slidably connected in casing, the alarm unit for being arranged on measuring rod one end and the other end for being arranged on measuring rod and the measurement head of valve oil seal cooperation, the middle part of measuring rod is peripherally disposed the first positive stop lug boss, the periphery of first positive stop lug boss is provided with the adjustment unit of adjustment measuring rod position, the beneficial effects of the invention are as follows, the valve oil seal detection device is detected by the way of electric-mechanic control system, show whether detection installation is qualified by audible-visual annunciator, without artificial reading, it is easy to detect quick, eliminate the uncertainty that human factor is brought, improve the precision and stability of detection.
Description
Technical field
The present invention relates to engine valve oil seal installation detection technique field more particularly to a kind of inspections of engine valve oil seal
Survey device.
Background technology
Valve oil seal is mounted in a kind of supravasal sealing element of engine cylinder cap air valve, to ensureing the thermal effect of engine
Rate and emission performance important role.It is mounted on due to valve oil seal in tappet hole smaller and deep on cylinder cap, valve oil seal
End face and tappet hole bottom hole between have the distance range of installation provision, be usually 16.50mm~17.50mm, if actual installation
Distance is more than defined distance range, i.e. the press fitting dynamics of valve oil seal is inadequate, then is present with valve oil seal and valve guide bushing knot
It closes insecure, it may appear that poor sealing, the situation of oil leak；If actual installation distance is less than defined distance range, i.e. valve oil
The press fitting of envelope is excessive, and since valve oil seal is made of fluorubber, excessively press fitting may make valve oil seal crack occur, no
Service life is only influenced, and sealing performance can reduce.
To sum up, valve oil seal after installation is complete, mainly measures its height to determine using vernier caliper or height gauge at present
Whether installation reaches requirement, is in smaller and deep tappet hole on cylinder cap due to the installation site of valve oil seal, uses vernier
Slide calliper rule or height gauge operation are extremely difficult, and need manually to read as a result, can bring very to testing staff when producing in batches every time
Big labor intensity, more seriously, since valve oil seal is detected, surface elastic is larger, is difficult to hold using conventional detection instrument
It is directed at dynamics well, it is easy to cause detection error and erroneous judgement.
The content of the invention
In order to solve the above technical problem, the present invention provides a kind of engine valve oil seal detection devices, mainly solve
Existing engine valve oil seal installation detection difficult, it is inaccurate the problem of, it is therefore intended that, by designing a kind of valve oil seal
Detection device is detected by the way of electric-mechanic control system, shows whether detection installation is qualified by audible-visual annunciator, without people
Part work and part study number eliminates the uncertainty that human factor is brought, and improves the precision and stability of detection.
To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is：A kind of engine
Valve oil seal detection device, which is characterized in that including be slidably connected in casing, casing measuring rod, be arranged on measuring rod one end
Alarm unit and be arranged on the other end of measuring rod and the measurement head of valve oil seal cooperation.
Further, the middle part of the measuring rod is peripherally disposed the first positive stop lug boss, the first positive stop lug boss
Periphery is provided with the adjustment unit of adjustment measuring rod position.
Further, the adjustment unit includes two elastic spacing components of limitation measuring rod sliding scale and is arranged on
The slip limit assembly of measuring rod initial position is adjusted between two elastic spacing components.
Further, described two elastic spacing components are separately positioned on the both sides up and down of the first positive stop lug boss, wrap respectively
Include the upper surface gap of the contact block connected by limit spring and spring cushion cover, one of contact block and the first positive stop lug boss
Cooperation, another contact block are contacted with the lower face of the first positive stop lug boss, and the spring cushion cover is fixed on casing.
Further, the lower part of the measuring rod is provided with the second positive stop lug boss, set above the second positive stop lug boss described in
Spring cushion cover, the second positive stop lug boss lower section is set sets the measurement head with fixed first axle sleeve of casing, the first axle sleeve lower section.
Further, the measurement head is threadedly coupled with measuring rod lower end, and measurement head lower end is clamped with valve oil seal.
Further, the limit assembly that slides includes contact sleeve, the screw thread of jacket exterior setting that inside pipe casing is set
Set, the holding screw for being fixed on contact sleeve and thread bush on casing and the adjusting set by holding screw clamping.
Further, multiple bar holes are both provided on the circumferencial direction of the thread bush and casing, are slided in bar hole
The holding screw is connected with, both sides set the adjusting set, the adjusting set and screw thread external threading to holding screw respectively up and down
Connection.
Further, the alarm unit includes the button cell, the acousto-optic that are connected in series with casing, contact block and measuring rod
Attention device and ship type switch, the button cell are connected to the upper end of measuring rod, are connected between button cell and ship type switch
Briquetting, briquetting is interior to set the acousto-optic alarm for mineral.
Further, the alarm unit further includes the positioning bolster of limitation briquetting position, the positioning bolster bag
The connecting spring being connected between button cell and measuring rod is included, briquetting upper and lower end face is respectively engaged with and is fixed on casing
Switch contact block and the second axle sleeve.
The beneficial effects of the invention are as follows：
The valve oil seal detection device, is detected by the way of electric-mechanic control system, the sound under normality in alarm unit
The indicator light of light crossing-signal is bright, casing-contact tappet hole bottom hole during detection, and the measuring rod in casing drives detector and valve oil
Sealing-in is touched, then is present with bright three kinds of situations after indicator light extinguishes, indicator light is bright always and indicator light first goes out, then may determine that successively
The conclusion that valve oil seal installation meets the requirements, valve oil seal press fitting is excessive and valve oil seal pressing is inadequate, without artificial reading, disappears
Except the uncertainty that human factor is brought, the precision and stability of detection is improved.
Further, described device is additionally provided with the adjustment unit of adjustment measuring rod position, with the calibrating device processed
It is detected respectively, the precision of judgment means detection, if there is detection inaccurately, by adjusting holding screw in adjustment unit
Position on casing adjusts the position of contact block, so as to adjust the height of contact head, makes measurement result more accurate.
To sum up, the valve oil seal detection device is detected by the way of electric-mechanic control system, is shown by audible-visual annunciator
Show whether detection installation is qualified, it is easy to detect quick without artificial reading, the uncertainty that human factor is brought is eliminated, is carried
The high precision and stability of detection.
Description of the drawings
Below to each width attached drawing of description of the invention expression content and figure in mark be briefly described：
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structure diagram of the A-A sectional views of Fig. 1；
Fig. 3 is the structure diagram of casing；
Fig. 4 is the structure diagram of measuring rod；
Fig. 5 is the structure diagram of measurement head；
Fig. 6 is the structure diagram of briquetting；
Fig. 7 is the structure diagram of the B-B sectional views of Fig. 6；
Fig. 8 is the structure diagram of thread bush；
Mark in above-mentioned figure is：1. casing, 11. bar holes, 2. measuring rods, 21. first positive stop lug boss, 22. second
Positive stop lug boss, 3. alarm units, 31. button cells, 32. acousto-optic alarm for mineral, 33. ship types switch, 34. briquettings, 35. positioning bufferings
Part, 351. connecting springs, 352. switch contact blocks, 353. second axle sleeves, 4. valve oil seals, 5. measurement heads, 6. adjustment units,
61. elastic spacing component, 611. limit springs, 612. contact blocks, 613. spring cushion covers, 62. slide limit assembly, 621. contacts
Set, 622. thread bush, 623. holding screws, 624. adjusting sets, 7. first axle sleeves.
Specific embodiment
Below against attached drawing, by the description to optimum embodiment, the specific embodiment of the present invention is made further detailed
Thin explanation.
Specific embodiment of the present invention is：As shown in Figure 1, a kind of engine valve oil seal detection device, including casing
1st, the measuring rod 2 that is slidably connected in casing 1 is arranged on the alarm unit 3 of 2 one end of measuring rod and is arranged on the another of measuring rod 2
The measurement head 5 that one end coordinates with valve oil seal 4.
The middle part of measuring rod 2 is peripherally disposed the first positive stop lug boss 21, and the periphery of the first positive stop lug boss 21 is set
There is the adjustment unit 6 of 2 position of adjustment measuring rod, adjustment unit 6 includes two elastic spacing groups of limitation 2 sliding scale of measuring rod
Part 61 and the slip limit assembly 62 for being arranged on adjustment 2 initial position of measuring rod between two elastic spacing components 61.
Specifically, two elastic spacing components 61 are separately positioned on the end face of the both sides up and down of the first positive stop lug boss 21,
It is one of contact block to include the contact block 612 connected by limit spring 611 and spring cushion cover 613, initial position respectively
612 and first positive stop lug boss 21 upper surface clearance fit, the lower face card of another 612 and first positive stop lug boss 21 of contact block
Contact, spring cushion cover 613 is fixed on casing 1, when measuring rod 2 is axially moved along casing 1, two contact blocks 612 and the
The upper surface or lower face of one positive stop lug boss 21 are inconsistent, and conflict power is passed to spring cushion cover by limit spring 611
613, play the role of elastic spacing and reduce conflict power, measuring rod 2 is made to run within the specific limits more steady；In order into one
The maximum range of activities of step limitation measuring rod 2, the lower part of measuring rod 2 is provided with the second positive stop lug boss 22, the second positive stop lug boss 22
Top sets the spring cushion cover 613, and 22 lower section of the second positive stop lug boss is set and 1 fixed first axle sleeve 7 of casing, the first axle sleeve
7 lower sections set the measurement head 5, make the second positive stop lug boss 22 movable between 613 and first axle sleeve 7 of spring cushion cover；In order to just
In replacing measurement head 5, measurement head 5 is threadedly coupled with 2 lower end of measuring rod, and 5 lower end of measurement head is clamped with valve oil seal 4, such as Fig. 5 institutes
Show, 5 upper end of measurement head is provided with threaded hole, as shown in figure 4,2 lower end of measuring rod sets the external thread section with threaded hole cooperation, surveys
First 5 lower end of amount sets the blind hole being clamped with the shoulder of valve oil seal 4, is positioned more accurately, in order to make the installation of measurement head 5 more square
Just, the mounting groove more secured, 5 lower end of measurement head is set and installation tool coordinates is installed.
Specifically, as shown in Fig. 2, sliding limit assembly 62 includes the contact sleeve 621 of setting inside casing 1, outside casing 1
The thread bush 622 of setting, for the holding screw 623 that is fixed on contact sleeve 621 and thread bush 622 on casing 1 and will be tight
Determine the adjusting set 624 of 623 clamping of screw, contact sleeve 621 and 2 clearance fit of measuring rod, thread bush 622 is consolidated by the way of welding
It is scheduled on outside casing 1, as shown in Fig. 3, Fig. 8, multiple bar holes 11 is both provided on the circumferencial direction of thread bush 622 and casing 1,
Holding screw 623 is slidably connected in bar hole 11, the blind hole opposite with bar hole 11, holding screw are set on contact sleeve 621
623 fix through bar hole 11 with contact sleeve 621, and holding screw sets adjusting set 624, two adjustings in both sides respectively about 623
Set 624 is threaded into the export-oriented holding screw 623 of thread bush 622, and the position of holding screw 623 is locked, contact sleeve 621
Position also fixed, 621 upper and lower end face of contact sleeve and contact block 612 are inconsistent, then secure the initial position of measuring rod 2.
Specifically, as shown in Figure 1, alarm unit 3 includes the knob being connected in series with casing 1, contact block 612 and measuring rod 2
Battery 31, acousto-optic alarm for mineral 32 and ship type switch 33 are detained, the button cell 31 is connected to the upper end of measuring rod 2, button cell
Briquetting 34 is connected between 31 and ship type switch 33, the acousto-optic alarm for mineral 32 is set in briquetting 34, as shown in fig. 6, briquetting 34
Nonmetal parts are arranged to, are shaped to T-shaped column structure, it includes big end and small end, is provided in big end and accommodates button electricity
First blind hole in pond 31, the first blind hole one side set the second blind hole communicated therewith, acousto-optic alarm for mineral 32 are installed in the second blind hole,
It is provided with to show the through hole of 32 indicator light of acousto-optic alarm for mineral on the casing 1 close with acousto-optic alarm for mineral 32, convenient for gauger
It is observed；The middle part of briquetting 34 also sets up the through hole communicated with the first blind hole and the second blind hole, and grafting ship type switchs in through hole
33 plug, the one side of 34 small end of briquetting are additionally provided with perpendicular the cutting with another Plug contact cooperation of ship type switch 33
Face, through hole and vertical tangent plane complete the positioning to ship type switch 33；The positioning that alarm unit 3 further includes 34 position of limitation briquetting is delayed
Stamping 35, the positioning bolster 35 include the connecting spring 351 being connected between button cell 31 and measuring rod 2, block respectively
352 and second axle sleeve 353 of switch contact block for being connected on 34 upper and lower end face of briquetting and being fixed on casing 1 makes alarm unit 3 whole
Structure is more stable, and 352 and second axle sleeve 353 of switch contact block is respectively engaged on the upper surface and lower face of 34 big end of briquetting,
And switch contact block 352 is arranged to metal derby and 33 Plug contact is switched with ship type, realizes by button cell 31, sound
The series connection formed between light attention device 32, ship type switch 33, switch contact block 352, casing 1, contact block 612 and measuring rod 2 is led to
Road.
Embodiment：Install whether satisfactory principle is with detection device detection valve oil seal 4：Detection starts
When, operator holds the top of this detection device, opens ship type switch 33, makes the 33 inside conducting of ship type switch, due to initial shape
The lower face contact of 612 and first positive stop lug boss 21 of contact block under state, and the relative distance between 1 bottom of measurement head 5 and casing
Near defined minimum mounting distance, i.e., slightly larger than 16.50mm, opened at this time by button cell 31, acousto-optic alarm for mineral 32, ship type
Close the series circuit conducting formed between 33, switch contact block 352, casing 1, contact block 612 and measuring rod 2, acousto-optic alarm for mineral
32 warning lamp is bright and alarms；
Then, operator is directed at valve oil seal 4 and vertically downward pressing detection device, if the actual installation of valve oil seal 4
When being highly higher than desired size, shoulder contact that 5 bottom of measurement head in detection device takes the lead in valve oil seal 4, measuring rod 2 exists
It is slided upward in casing 1, measuring rod 2 makes 612 and first positive stop lug boss 21 of contact block of lower end first during slip
Lower face separation and 612 and first positive stop lug boss 21 of contact block of upper end upper surface also not in contact with series circuit quilt at this time
It disconnects, the warning lamp of acousto-optic alarm for mineral 32, which goes out to alarm, to be stopped, and then measuring rod 2 continues to slide up, when the lower end of casing 1 moves down
To when being contacted with the tappet hole bottom hole of cylinder cap, the upper surface contact of 612 and first positive stop lug boss 21 of contact block of upper end makes series connection
Circuit turn-on, the warning lamp of acousto-optic alarm for mineral 32 are lighted and alarmed again；If the actual installation height of valve oil seal 4 is less than requirement
During size, then the lower end for being present with casing 1 takes the lead in being displaced downwardly to and is contacted with the tappet hole bottom hole of cylinder cap, then 5 bottom of measurement head at this time
The also not shoulder contact with valve oil seal 4, then warning lamp is not in the situation of extinguishing, can be bright always, and alarm also can be always
In the presence of；If the actual installation of valve oil seal 4 highly meets the requirements during size, shoulder that 5 bottom of measurement head takes the lead in valve oil seal 4
Contact, measuring rod 2 in casing 1 are slided, contacted until the lower end of casing 1 is displaced downwardly to the tappet hole bottom hole of cylinder cap upward
When, the lower face separation of 612 and first positive stop lug boss 21 of contact block of lower end and 612 and first /V of contact block of upper end at this time
The upper surface of boss 21 is also not in contact with series circuit is disconnected at this time, and the warning lamp of acousto-optic alarm for mineral 32, which goes out to alarm, to be stopped；
To sum up, occurred again by existing to disappearing to bright, alarm to going out again by bright according to the warning lamp of acousto-optic alarm for mineral 32
Detection process, can determine that valve oil seal 4 actual installation height be higher than desired size；It is bright always according to warning lamp, alarm
The detection process always existed can determine that the actual installation height of valve oil seal 4 is less than desired size；Bright arrive is had according to warning lamp
It goes out, alarm can determine that the actual installation of valve oil seal 4 highly meets the requirements size by there is the detection process to disappearance.
The principle of the accuracy of detection of detection device is adjusted by adjustment unit 6 and calibration block is：It may be provided on calibration block
One boss, calibration block are usually equipped with 3, and the height of a boss is higher than qualified size, and one is less than qualified size, another is full
Sufficient qualified size requirement, operator periodically calibrate detection device according to above-mentioned principle, can lead to if reporting by mistake in discovering device
Two adjusting sets 624 of turn are crossed, and make holding screw 623 that contact sleeve 621 be driven to be slided up and down in bar hole 11, then by two
Direction turn and locking of a adjusting set 624 to holding screw 623 are corrected.
To sum up, the valve oil seal detection device is detected by the way of electric-mechanic control system, is shown by audible-visual annunciator
Show whether detection installation is qualified, it is easy to detect quick without artificial reading, the uncertainty that human factor is brought is eliminated, is carried
The high precision and stability of detection.
The above, some principles for the present invention that simply explains through diagrams, this specification are not intended to limit to the present invention
In the shown concrete structure and the scope of application, thus it is every it is possible that the corresponding modification being utilized and equivalent,
Belong to the apllied the scope of the claims of the present invention.
Claims (10)
1. a kind of engine valve oil seal detection device, which is characterized in that including the survey being slidably connected in casing (1), casing (1)
Gauge rod (2), the alarm unit (3) for being arranged on measuring rod (2) one end and the other end and valve oil seal for being arranged on measuring rod (2)
(4) measurement head (5) of cooperation.
2. valve oil seal detection device according to claim 1, it is characterised in that：The middle part of the measuring rod (2) is along circle
Circumferential direction is provided with the first positive stop lug boss (21), and the periphery of the first positive stop lug boss (21) is provided with adjustment measuring rod (2) position
Adjustment unit (6).
3. valve oil seal detection device according to claim 2, it is characterised in that：The adjustment unit (6) includes limitation
It two elastic spacing components (61) of measuring rod (2) sliding scale and is arranged on to adjust between two elastic spacing components (61) and surveys
The slip limit assembly (62) of gauge rod (2) initial position.
4. valve oil seal detection device according to claim 3, it is characterised in that：Described two elastic spacing components (61)
The both sides up and down of the first positive stop lug boss (21) are separately positioned on, include the contact block connected by limit spring (611) respectively
(612) and spring cushion cover (613), one of contact block (612) and the upper surface clearance fit of the first positive stop lug boss (21), separately
One contact block (612) contacts with the lower face of the first positive stop lug boss (21), and the spring cushion cover (613) is fixed on casing
(1) on.
5. valve oil seal detection device according to claim 4, it is characterised in that：The lower part of the measuring rod (2) is set
There is the second positive stop lug boss (22), the spring cushion cover (613), the second positive stop lug boss (22) are set above the second positive stop lug boss (22)
Lower section is set sets the measurement head (5) with fixed first axle sleeve (7) of casing (1), the first axle sleeve (7) lower section.
6. valve oil seal detection device according to claim 1, it is characterised in that：The measurement head (5) and measuring rod (2)
Lower end is threadedly coupled, and measurement head (5) lower end is clamped with valve oil seal (4).
7. valve oil seal detection device according to claim 3, it is characterised in that：The slip limit assembly (62) includes
The thread bush (622) that is set outside the contact sleeve (621) that sets inside casing (1), casing (1), for by contact sleeve (621) and
Thread bush (622) is fixed on the holding screw (623) on casing (1) and the adjusting set by holding screw (623) clamping
(624)。
8. valve oil seal detection device according to claim 7, it is characterised in that：The thread bush (622) and casing (1)
Circumferencial direction on be both provided with multiple bar holes (11), slidably connects the holding screw (623) in bar hole (11), tightly
Determining screw (623), both sides set the adjusting set (624) respectively up and down, and the adjusting set (624) connects with thread bush (622) screw thread
It connects.
9. the valve oil seal detection device according to claim 1~8 any one, it is characterised in that：The alarm unit
(3) button cell (31), the acousto-optic alarm for mineral (32) that are connected in series with casing (1), contact block (612) and measuring rod (2) are included
(33) are switched with ship type, the button cell (31) is connected to the upper end of measuring rod (2), button cell (31) and ship type switch
(33) briquetting (34) is connected between, the acousto-optic alarm for mineral (32) is set in briquetting (34).
10. valve oil seal detection device according to claim 9, it is characterised in that：The alarm unit (3) further includes limit
The positioning bolster (35) of briquetting (34) position processed, the positioning bolster (35) include being connected to button cell (31) and measurement
Connecting spring (351) between bar (2), the switch for being respectively engaged with briquetting (34) upper and lower end face and being fixed on casing (1) connect
Contact block (352) and the second axle sleeve (353).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393106.2A CN108061657B (en) | 2017-12-21 | 2017-12-21 | A kind of engine valve oil seal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393106.2A CN108061657B (en) | 2017-12-21 | 2017-12-21 | A kind of engine valve oil seal detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108061657A true CN108061657A (en) | 2018-05-22 |
| CN108061657B CN108061657B (en) | 2019-11-12 |
Family
ID=62139603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711393106.2A Active CN108061657B (en) | 2017-12-21 | 2017-12-21 | A kind of engine valve oil seal detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108061657B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581628A (en) * | 2009-07-03 | 2009-11-18 | 成都盛帮密封件有限公司 | Engine valve oil seal test stand |
| CN201724786U (en) * | 2009-09-21 | 2011-01-26 | 哈尔滨东安实业发展有限公司 | Valve oil seal testing apparatus |
| CN202292053U (en) * | 2011-10-09 | 2012-07-04 | 广州市井源机电设备有限公司 | Valve oil seal press mounting machine |
| CN202710229U (en) * | 2012-07-11 | 2013-01-30 | 成都盛帮密封件股份有限公司 | Valve oil seal detection and tension-compression continuous device |
| CN103123257A (en) * | 2012-09-06 | 2013-05-29 | 浙江吉利罗佑发动机有限公司 | Air charging and exhausting valve oil seal inner flange gauge and detecting method thereof |
| CN203224193U (en) * | 2013-04-24 | 2013-10-02 | 封新娥 | Length detector with alarming function |
| CN203616063U (en) * | 2013-12-08 | 2014-05-28 | 揭阳市天诚密封件有限公司 | Valve oil seal static sealing performance detection device |
| CN206321371U (en) * | 2016-12-16 | 2017-07-11 | 青岛昌誉密封有限公司 | A kind of valve oil seal pressure-off force test device |
-
2017
- 2017-12-21 CN CN201711393106.2A patent/CN108061657B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581628A (en) * | 2009-07-03 | 2009-11-18 | 成都盛帮密封件有限公司 | Engine valve oil seal test stand |
| CN201724786U (en) * | 2009-09-21 | 2011-01-26 | 哈尔滨东安实业发展有限公司 | Valve oil seal testing apparatus |
| CN202292053U (en) * | 2011-10-09 | 2012-07-04 | 广州市井源机电设备有限公司 | Valve oil seal press mounting machine |
| CN202710229U (en) * | 2012-07-11 | 2013-01-30 | 成都盛帮密封件股份有限公司 | Valve oil seal detection and tension-compression continuous device |
| CN103123257A (en) * | 2012-09-06 | 2013-05-29 | 浙江吉利罗佑发动机有限公司 | Air charging and exhausting valve oil seal inner flange gauge and detecting method thereof |
| CN203224193U (en) * | 2013-04-24 | 2013-10-02 | 封新娥 | Length detector with alarming function |
| CN203616063U (en) * | 2013-12-08 | 2014-05-28 | 揭阳市天诚密封件有限公司 | Valve oil seal static sealing performance detection device |
| CN206321371U (en) * | 2016-12-16 | 2017-07-11 | 青岛昌誉密封有限公司 | A kind of valve oil seal pressure-off force test device |
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| Publication number | Publication date |
|---|---|
| CN108061657B (en) | 2019-11-12 |
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