CN103123257A - Air charging and exhausting valve oil seal inner flange gauge and detecting method thereof - Google Patents
Air charging and exhausting valve oil seal inner flange gauge and detecting method thereof Download PDFInfo
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- CN103123257A CN103123257A CN2012103270319A CN201210327031A CN103123257A CN 103123257 A CN103123257 A CN 103123257A CN 2012103270319 A CN2012103270319 A CN 2012103270319A CN 201210327031 A CN201210327031 A CN 201210327031A CN 103123257 A CN103123257 A CN 103123257A
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Abstract
The invention relates to an air charging and exhausting valve oil seal inner flange gauge and a detecting method thereof. The air charging and exhausting valve oil seal inner flange gauge comprises a valve oil seal measuring tool and a spring testing instrument. The valve oil seal measuring tool comprises a base, an upper pull rod and a lower pull rod, wherein the upper pull rod and the lower pull rod are arranged on the base and can slide on the base vertically. The bottom end of the upper pull rod and the top end of the lower pull rod are opposite, and a hook hole is respectively arranged on the upper pull rod and the lower pull rod. The detecting method includes that by matching the spring testing instrument and the valve oil seal measuring tool, pressing force is controlled, and pulling force is measured so as to judge whether the diameter of the valve oil seal inner flange is qualified. The air charging and exhausting valve oil seal inner flange gauge and the detecting method greatly reduce effects of human factors, are good in measuring result repeatability and stability, correct in measuring, favorable for controlling the valve oil seal quality strictly and convenient to operate, save time and improve detecting efficiency.
Description
Technical field
The present invention relates to a kind of valve oil seal detection method and pick-up unit, relate in particular to a kind of intake and exhaust valve oil seal inward flange cubing and detection method thereof.
Background technology
The intake and exhaust valve oil seal that is used on automobile generally comprises oil seal body, is provided with the inner chamber that runs through whole oil seal body in oil seal body, and inner chamber chamber wall is provided with a circle inward flange, and whole oil seal body is made by quality of rubber materials.During use, valve stem is located in the inner chamber of oil seal body and can moves back and forth.Manufacturer or quality inspection organization in order to ensure the sealing property of intake and exhaust valve oil seal, need to detect the inward flange diameter of intake and exhaust valve oil seal.Be all generally to adopt vernier caliper to detect valve oil seal inward flange diameter at present, but because the material of valve oil seal is rubber, easily be subjected to the impact of human factor in testing process, block tightlier, the diameter that records will be larger, Ka Desong 1 point, and the diameter that records will be smaller.Therefore, this detection method causes measurement result repeatability, the stability of valve oil seal inward flange diameter all relatively poor, measure accurate not, the actual numerical value that can not accurately reflect valve oil seal inward flange diameter, thereby can not strictly control the quality of valve oil seal, the sealing property of valve oil seal can not well be guaranteed, and in measuring process also easily to the inner flange surface injury of quality of rubber materials.
Summary of the invention
The present invention mainly solves original employing vernier caliper and detects valve oil seal inward flange diameter, easily is subjected to the impact of human factor, and measurement result repeatability, stability are all relatively poor, measure not accurate enough, thereby can not strictly control the technical matters of valve oil seal quality; A kind of intake and exhaust valve oil seal inward flange cubing and detection method thereof are provided, it measures being used in conjunction with of frock by spring tester and valve oil seal, control pressing-in force, measure withdrawal force, thereby judge whether valve oil seal inward flange diameter is qualified, thereby greatly reduce the impact of human factor, easy to operate, measurement result repeatability, good stability are measured accurately, are conducive to strictly control the valve oil seal quality.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: intake and exhaust valve oil seal inward flange cubing of the present invention, comprise valve oil seal measurement frock and spring tester, described valve oil seal is measured upper connecting rod and the lower link that frock comprises pedestal and is located on pedestal and can slides up and down on pedestal, the bottom of upper connecting rod is relative with the top of lower link, is equipped with a pull hook hole on upper connecting rod, lower link.Be the clearance fit structure between upper connecting rod, lower link and pedestal.Spring tester is a kind ofly to stretch or stressed test unit during compression for measuring spring, it generally comprises platen, pressing disc, elevating bracket, control lever, displacement transducer, pressure transducer and display device, the rotating operation bar, tooth bar is moved up and down, driving platen by elevating bracket rises or descends, the suffered power of spring is reflected to display device again by the pressure transducer collection, the panel board of the employing pointer-type that display device has, and some employing read-around ratios are liquid crystal display more intuitively.The present invention utilizes present existing spring tester, and valve oil seal is measured frock and cooperated and detect.Valve oil seal is measured on the pressing disc that frock is placed on spring tester, and lower link is pressed on pressing disc, the pull-up upper connecting rod is enclosed within tested valve oil seal on the top of lower link, then the control lever of rotation spring tester, the upper platen of spring tester is descended, upper platen presses down upper connecting rod, and the bottom of upper connecting rod is pressed on tested valve oil seal tightly, and the force value that this moment, spring tester showed is exactly pressing-in force, control this pressing-in force in certain limit, as between 10～15N.Then the control lever of rotation spring tester, make the upper platen of spring tester increase, the valve oil seal that taking-up and tested valve oil seal are pressed together is measured frock, upper connecting rod is suspended on the extension pin that is positioned at the spring tester top, lower link is caught in the hook that is positioned on the spring tester elevating bracket, and the control lever of rotation spring tester descends the upper platen of spring tester, until pull out lower link from tested valve oil seal, the force value that this moment, spring tester showed is exactly withdrawal force.If control pressing-in force between 10～15N, the withdrawal force that records is more than or equal to 100N, and the inward flange diameter that is judged to be tested valve oil seal is qualified, illustrates that nip meets the requirements, otherwise is judged to be defective.Whether qualifiedly detect valve oil seal inward flange diameter with the present invention, greatly reduce the impact of human factor, easy to operate, measurement result repeatability, good stability are measured accurately, are conducive to strictly control the valve oil seal quality.
As preferably, the bottom of described upper connecting rod is provided with the valve oil seal accommodation hole, and the shape of valve oil seal accommodation hole and aperture are complementary with profile and the external diameter of tested valve oil seal respectively.When surveying pressing-in force, upper connecting rod descends, and the valve oil seal accommodation hole is enclosed within the outside of tested valve oil seal, and both fit tightly, and improves measurement accuracy.
As preferably, described valve oil seal accommodation hole is a counterbore that is connected and consists of with big hole by small sircle hole, and small sircle hole is that a counterbore and its are connected in the top of big hole, and big hole is that a through hole and its are opened on the bottom of described upper connecting rod.Tested valve oil seal outer wall has individual shoulder, and be connected with the big hole counterbore and the tested valve oil seal outer wall that consist of of small sircle hole is complementary, and both fit tightly, the raising measurement accuracy.
As preferably, described pedestal comprises end face and is connected in left support frame and the right support frame of end face below, end face is rounded, left support frame, right support frame are all curved, be provided with the support plate that can slide up and down in described pedestal, described lower link is connected in the bottom surface of support plate, the end face of described support plate is provided with the flange gauge head with the inner chamber of tested valve oil seal coupling, described upper connecting rod passes the end face of pedestal and the bottom of upper connecting rod is stretched in pedestal, and the bottom of upper connecting rod is relative with described flange gauge head.The whole shape of pedestal is similar to right cylinder, forms forward and backward window between left support frame and right support frame, is convenient to observe the process that is pressed into or extracts.The flange gauge head stretches in the inner chamber of tested valve oil seal, and both fit tightly, and improves measurement accuracy.
As preferably, described flange gauge head is right cylinder, and the side of flange gauge head is provided with the groove that a circle footpath concaves, and described groove is near the top of flange gauge head.The flange gauge head stretches in the inner chamber of tested valve oil seal, and the flange in tested valve oil seal just in time embeds in groove, and the inner chamber of flange gauge head and tested valve oil seal is fitted tightly, and improves measurement accuracy.
As preferably, the end face of described pedestal is provided with a boss, and described upper connecting rod passes the bottom of boss and upper connecting rod and stretches in pedestal.Make upper connecting rod be connected connection with pedestal more firm, the upper connecting rod Shi Buhui that moves up and down is offset, and moves more stable.
As preferably, be connected with crossbeam between described left support frame and right support frame.Pedestal forward and backward has a crossbeam, and crossbeam generally is positioned at middle part or the position, middle and lower part of pedestal, and is more firm when making whole pedestal lay, and also improves the strength of joint of pedestal.
The detection method of intake and exhaust valve oil seal inward flange cubing of the present invention comprises the following steps:
A. described valve oil seal being measured frock is placed on the pressing disc of described spring tester, and described lower link is pressed on pressing disc, the described upper connecting rod of pull-up, tested valve oil seal is enclosed within the top of lower link, then the control lever of rotation spring tester, descend the upper platen of spring tester, upper platen presses down upper connecting rod, the bottom of upper connecting rod is pressed on tested valve oil seal tightly, reads the force value that this moment, spring tester showed, i.e. pressing-in force;
B. the control lever of rotation spring tester, make the upper platen of spring tester increase, the valve oil seal that taking-up and tested valve oil seal are pressed together is measured frock, the upper connecting rod of this valve oil seal being measured frock is suspended on the extension pin that is positioned at the spring tester top, the lower link that valve oil seal is measured frock is caught in the hook that is positioned on the spring tester elevating bracket, then the control lever of rotation spring tester, the upper platen of spring tester is descended, until pull out lower link from tested valve oil seal, read the force value that this moment, spring tester showed, i.e. withdrawal force;
If c. control pressing-in force between 10～15N, the withdrawal force that records is more than or equal to 100N, and the inward flange diameter that is judged to be tested valve oil seal is qualified, and is defective if the withdrawal force that records less than 100N, is judged to be the inward flange diameter of tested valve oil seal.
as preferably, described pedestal comprises end face and is connected in left support frame and the right support frame of end face below, end face is rounded, the left support frame, the right support frame is all curved, be provided with the support plate that can slide up and down in described pedestal, described lower link is connected in the bottom surface of support plate, the end face of described support plate is provided with the flange gauge head with the inner chamber of tested valve oil seal coupling, described upper connecting rod passes the end face of pedestal and the bottom of upper connecting rod is stretched in pedestal, the bottom of upper connecting rod is provided with the valve oil seal accommodation hole, the shape of valve oil seal accommodation hole and aperture are complementary with profile and the external diameter of tested valve oil seal respectively, the valve oil seal accommodation hole of upper connecting rod is relative with described flange gauge head, described step a is: described valve oil seal is measured frock be placed on the pressing disc of described spring tester, and described lower link is pressed on pressing disc, the described upper connecting rod of pull-up, tested valve oil seal is enclosed within on described flange gauge head, then the control lever of rotation spring tester, the upper platen of spring tester is descended, upper platen presses down upper connecting rod, the valve oil seal accommodation hole of upper connecting rod is enclosed within outside tested valve oil seal tightly, this moment the valve oil seal accommodation hole, tested valve oil seal and flange gauge head are connected by inside and outside tight extruding, read the force value that this moment, spring tester showed, it is pressing-in force.
The invention has the beneficial effects as follows: measure being used in conjunction with of frock by spring tester and valve oil seal, control pressing-in force, measure withdrawal force, thereby judge whether valve oil seal inward flange diameter is qualified, thereby greatly reduce the impact of human factor, measurement result repeatability, good stability, measure accurately, be conducive to strictly control the valve oil seal quality, and easy to operate, save time, improve detection efficiency.
Description of drawings
Fig. 1 is a kind of axial sectional structure schematic diagram that in the present invention, valve oil seal is measured frock.
Fig. 2 is a kind of axial sectional structure schematic diagram of intake and exhaust valve oil seal.
Fig. 3 is a kind of structural representation of medi-spring tester of the present invention.
1. pedestals in figure, 2. upper connecting rod, 3. lower link, 4. pull hook hole, 5. valve oil seal accommodation hole, 6. end face, 7. left support frame, 8. right support frame, 9. support plate, 10. flange gauge head, 11. groove, 12. boss, 13. crossbeams, 20. valve oil seals are measured frock, 30. spring tester, platen on 31., 32. pressing discs, 33. control lever, 34. hang pin, 35. elevating brackets, 36. hooks, 37. displays, 40. valve oil seal, 41. oil seal bodies, 42. inner chambers, 43. inward flanges.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: the intake and exhaust valve oil seal inward flange cubing of the present embodiment as shown in Figure 1, comprises valve oil seal measurement frock 20 and spring tester 30.Valve oil seal is measured frock 20 and is comprised pedestal 1 and can slide up and down upper connecting rod 2 and lower link 3.Pedestal 1 comprises end face 6 and is connected in left support frame 7 and the right support frame 8 of end face 6 belows, end face 6 is rounded, left support frame 7, right support frame 8 are all curved, be connected with crossbeam 13 between left support frame and right support frame, the end face 6 of pedestal 1 has a boss 12, has a through hole in boss.Upper connecting rod 2 passes boss 12 inner via holes, and the bottom of upper connecting rod 2 stretches in pedestal 1, has a pull hook hole 4 on upper connecting rod 2.There is a valve oil seal accommodation hole 5 bottom of upper connecting rod 2, and the shape of valve oil seal accommodation hole 5 and aperture are complementary with profile and the external diameter of tested valve oil seal 40 respectively.In the present embodiment, valve oil seal accommodation hole 5 is counterbores that are connected and consist of with big hole by small sircle hole, and small sircle hole is that counterbore and its are connected in the top of big hole, and big hole is that a through hole and its are opened on the bottom of upper connecting rod 2.A support plate that can slide up and down 9 is installed in pedestal 1, lower link 3 is connected in the bottom surface of support plate 9, have a pull hook hole 4 on lower link 3, the end face of support plate 9 has the flange gauge head 10 of the inner chamber coupling of and tested valve oil seal, flange gauge head 10 is right cylinder, the side of flange gauge head 10 has one to enclose the groove 11 that the footpath concaves, groove 11 is near the top of flange gauge head 10, inward flange 43 in the inner chamber 42 of groove and tested valve oil seal 40 is complementary, and the valve oil seal accommodation hole 5 of flange gauge head 10 and upper connecting rod is relative.
As shown in Figure 3, spring tester 30 comprises platen 31, pressing disc 32, elevating bracket 35, control lever 33, displacement transducer, pressure transducer and display 37, pressing disc 32 is connected with elevating bracket 35, control lever 33 is connected with elevating bracket 35 with the gear train that tooth bar consists of by gear, the top of spring tester 30 is equipped with an extension pin 34 down, and a hook 36 of laterally protruding is installed on elevating bracket 35.Rotating operation bar 33 moves up and down tooth bar, and in drive, platen 31 rises or descends, and the force value that pressure transducer collects flows to display 37 and shows.
Tested valve oil seal 40 structures that the present embodiment will be surveyed comprise oil seal body 41 as shown in Figure 2, and oil seal body 41 has an inner chamber 42, and a circle inward flange 43 is arranged on inner chamber 42 chamber walls, and whole oil seal body is made by quality of rubber materials.
The detection method of above-mentioned intake and exhaust valve oil seal inward flange cubing comprises the following steps:
a. valve oil seal is measured on the pressing disc 32 that frock 20 is placed on spring tester 30, and lower link 3 is pressed on pressing disc 32, pull-up upper connecting rod 2, tested valve oil seal 40 is enclosed within on flange gauge head 10, then the control lever 33 of rotation spring tester 30, the upper platen 31 of spring tester 30 is descended, upper platen 31 presses down upper connecting rod 2, the valve oil seal accommodation hole 5 of upper connecting rod 2 is enclosed within outside tested valve oil seal 40 tightly, this moment, the valve oil seal accommodation hole 5, tested valve oil seal 40 and flange gauge head 10 are connected by inside and outside tight extruding, the force value that shows on spring tester display 37 at this moment is pressing-in force, control pressing-in force between 10～15N,
b. the control lever 33 of rotation spring tester 30, make the upper platen 31 of spring tester 30 increase, taking-up is measured frock 20 with the valve oil seal of tested valve oil seal 40, pull hook hole 4 on upper connecting rod 2 is suspended on the extension pin 34 that is positioned at spring tester 30 tops, be arranged in hook 36 on elevating bracket 35 and hook pull hook hole 4 on lower link 3, then the control lever 33 of rotation spring tester, the upper platen 31 of spring tester is descended, until pull out lower link 3 from tested valve oil seal 40, read the force value of spring tester display 37 demonstrations this moment, be withdrawal force,
If the withdrawal force that c. records more than or equal to 100N, illustrates that the nip of inward flange meets the requirements, the inward flange diameter that is judged to be tested valve oil seal is qualified; If the withdrawal force that records less than 100N, illustrates that the nip of inward flange is inadequate, and is undesirable, the inward flange diameter that is judged to be tested valve oil seal is defective.
The present invention measures frock by valve oil seal and ready-made spring tester is used in conjunction with, control the pressing-in force of valve oil seal, measure the lower link withdrawal force, thereby whether the nip that judges the valve oil seal inward flange meets the requirements, can judge whether valve oil seal inward flange diameter is qualified.Utilize the present invention that intake and exhaust valve oil seal inward flange is detected, greatly reduce the impact of human factor, measurement result repeatability, good stability, measure accurately, be conducive to strictly control the valve oil seal quality, and easy to operate, save time, improve detection efficiency.
Claims (9)
1. intake and exhaust valve oil seal inward flange cubing, it is characterized in that comprising valve oil seal measurement frock (20) and spring tester (30), described valve oil seal is measured frock (20) and is comprised pedestal (1) and be located at upper connecting rod (2) and the lower link (3) that pedestal (1) is upper and can slide up and down on pedestal (1), the bottom of upper connecting rod (2) is relative with the top of lower link (3), is equipped with a pull hook hole (4) on upper connecting rod (2), lower link (3).
2. intake and exhaust valve oil seal inward flange cubing according to claim 1, the bottom that it is characterized in that described upper connecting rod (2) is provided with valve oil seal accommodation hole (5), and the shape of valve oil seal accommodation hole (5) and aperture are complementary with profile and the external diameter of tested valve oil seal (40) respectively.
3. intake and exhaust valve oil seal inward flange cubing according to claim 2, it is characterized in that described valve oil seal accommodation hole (5) is a counterbore that is connected and consists of with big hole by small sircle hole, small sircle hole is that counterbore and its are connected in the top of big hole, and big hole is that a through hole and its are opened on the bottom of described upper connecting rod (2).
4. intake and exhaust valve oil seal inward flange cubing according to claim 1 and 2, it is characterized in that described pedestal (1) comprises end face (6) and is connected in left support frame (7) and the right support frame (8) of end face (6) below, end face (6) is rounded, left support frame (7), right support frame (8) is all curved, be provided with the support plate (9) that can slide up and down in described pedestal (1), described lower link (3) is connected in the bottom surface of support plate (9), the end face of described support plate (9) is provided with the flange gauge head (10) with the inner chamber of tested valve oil seal (40) coupling, described upper connecting rod (2) passes the end face (6) of pedestal (1) and the bottom of upper connecting rod (2) is stretched in pedestal (1), the bottom of upper connecting rod (2) is relative with described flange gauge head (10).
5. intake and exhaust valve oil seal inward flange cubing according to claim 4, it is characterized in that described flange gauge head (10) is right cylinder, the side of flange gauge head (10) is provided with one and encloses the groove (11) that the footpath concaves, and described groove (11) is near the top of flange gauge head (10).
6. intake and exhaust valve oil seal inward flange cubing according to claim 4, the end face (6) that it is characterized in that described pedestal (1) is provided with a boss (12), and described upper connecting rod (2) passes the bottom of boss (12) and upper connecting rod (2) and stretches in pedestal (1).
7. intake and exhaust valve oil seal inward flange cubing according to claim 4, is characterized in that being connected with crossbeam (13) between described left support frame (7) and right support frame (8).
8. the detection method of an intake and exhaust valve oil seal inward flange cubing as claimed in claim 1 is characterized in that comprising the following steps:
a. described valve oil seal being measured frock (20) is placed on the pressing disc (32) of described spring tester (30), and described lower link (3) is pressed on pressing disc (32), the described upper connecting rod of pull-up (2), tested valve oil seal (40) is enclosed within the top of lower link (3), then the control lever (33) of rotation spring tester (30), the upper platen (31) of spring tester (30) is descended, upper platen (31) presses down upper connecting rod (2), the bottom of upper connecting rod (2) is pressed on tested valve oil seal (40) tightly, read the force value that spring tester this moment (30) shows, it is pressing-in force,
b. the control lever (33) of rotation spring tester (30), make the upper platen (31) of spring tester increase, the valve oil seal that taking-up and tested valve oil seal (40) are pressed together is measured frock (20), the upper connecting rod (2) of this valve oil seal being measured frock is suspended on the extension pin (34) that is positioned at spring tester (30) top, the lower link (3) that valve oil seal is measured frock (20) is caught in the hook (36) that is positioned on spring tester newel (35), then the control lever of rotation spring tester (33), the upper platen (31) of spring tester is descended, until pull out lower link (3) from tested valve oil seal (40), read the force value that spring tester this moment (30) shows, it is withdrawal force,
If c. control pressing-in force between 10～15N, the withdrawal force that records is more than or equal to 100N, the inward flange diameter that is judged to be tested valve oil seal (40) is qualified, and is defective if the withdrawal force that records less than 100N, is judged to be the inward flange diameter of tested valve oil seal (40).
9. the detection method of intake and exhaust valve oil seal inward flange cubing according to claim 8, it is characterized in that described pedestal (1) comprises end face (6) and is connected in left support frame (7) and the right support frame (8) of end face (6) below, end face (6) is rounded, left support frame (7), right support frame (8) is all curved, be provided with the support plate (9) that can slide up and down in described pedestal (1), described lower link (3) is connected in the bottom surface of support plate (9), the end face of described support plate (9) is provided with the flange gauge head (10) with the inner chamber of tested valve oil seal coupling, described upper connecting rod (2) passes the end face (6) of pedestal (1) and the bottom of upper connecting rod (2) is stretched in pedestal (1), the bottom of upper connecting rod (2) is provided with valve oil seal accommodation hole (5), the shape of valve oil seal accommodation hole (5) and aperture are complementary with profile and the external diameter of tested valve oil seal (40) respectively, the valve oil seal accommodation hole (5) of upper connecting rod (2) is relative with described flange gauge head (10), described step a is: described valve oil seal is measured frock (20) be placed on the pressing disc (32) of described spring tester (30), and described lower link (3) is pressed on pressing disc (32), the described upper connecting rod of pull-up (2), tested valve oil seal (40) is enclosed within on described flange gauge head (10), then the control lever (33) of rotation spring tester (30), the upper platen (31) of spring tester (30) is descended, upper platen (31) presses down upper connecting rod (2), the valve oil seal accommodation hole (5) of upper connecting rod (2) is enclosed within outside tested valve oil seal (40) tightly, this moment valve oil seal accommodation hole (5), tested valve oil seal (40) and flange gauge head (10) are connected by inside and outside tight extruding, read the force value that spring tester this moment (30) shows, it is pressing-in force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210327031.9A CN103123257B (en) | 2012-09-06 | 2012-09-06 | Intake and exhaust valve oil seal inward flange cubing and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210327031.9A CN103123257B (en) | 2012-09-06 | 2012-09-06 | Intake and exhaust valve oil seal inward flange cubing and detection method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN103123257A true CN103123257A (en) | 2013-05-29 |
| CN103123257B CN103123257B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210327031.9A Expired - Fee Related CN103123257B (en) | 2012-09-06 | 2012-09-06 | Intake and exhaust valve oil seal inward flange cubing and detection method thereof |
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| Country | Link |
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| CN105424281A (en) * | 2014-09-22 | 2016-03-23 | 无锡宏利减震器有限公司 | Oil seal inspection device |
| CN108061657A (en) * | 2017-12-21 | 2018-05-22 | 江苏三能动力总成有限公司 | A kind of engine valve oil seal detection device |
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| Publication number | Publication date |
|---|---|
| CN103123257B (en) | 2015-08-05 |
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Address after: 315800 No. 1528 Hengshan Road, Xintao Street, Beilun District, Ningbo City, Zhejiang Province Co-patentee after: JI'NAN GEELY AUTO PARTS Co.,Ltd. Patentee after: ZHEJIANG GEELY POWER ASSEMBLY Co.,Ltd. Co-patentee after: HUNAN LUOYOU ENGINE PARTS Co.,Ltd. Co-patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Address before: 315800 No. 1528 Hengshan Road, Xintao Street, Beilun District, Ningbo City, Zhejiang Province Co-patentee before: JI'NAN GEELY AUTO PARTS Co.,Ltd. Patentee before: ZHEJIANG GEELY LUOYOU ENGINE Co.,Ltd. Co-patentee before: HUNAN LUOYOU ENGINE PARTS Co.,Ltd. Co-patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
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