CN104729806A - Tubeless car steel-ring rim air tightness detecting machine - Google Patents
Tubeless car steel-ring rim air tightness detecting machine Download PDFInfo
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- CN104729806A CN104729806A CN201510183571.8A CN201510183571A CN104729806A CN 104729806 A CN104729806 A CN 104729806A CN 201510183571 A CN201510183571 A CN 201510183571A CN 104729806 A CN104729806 A CN 104729806A
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- recessed edge
- steel ring
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- edge wheel
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Abstract
The invention relates to an air tightness detecting machine used for detecting whether a welding line of a tubeless car steel-ring rim is leaked or not. The tubeless car steel-ring rim air tightness detecting machine comprises a frame (2), a steel-ring support plate (3), a steel-ring upper pressure plate (4), guide bars (5), linear side rail limit mechanisms of the guide bars, a driving element of the steel-ring upper pressure plate and an assorted electrical control system; the frame (2) adopts an oblique structure conforming to erogonomics; a rim is placed on the steel-ring support plate (3) during operation, then the steel-ring upper pressure plate (4) is pressed down to form an enclosed internal space of the rim, the internal space of the rim is filled with high-pressure air, soapy water is painted in the welding line of the rim, and whether the quality of the welding line is good or not is judged by observing whether bubbles emerge or not; the guide bars (5) and the linear side rail limit mechanisms of the guide bars are used for determining that the steel-ring upper pressure plate (4) and the steel-ring support plate (3) are always kept parallel; the linear slide rail limit mechanisms of the guide bars use flanges of at least two flange rollers (10) vertically obliquely mounted corresponding to two sides of the guide bars (5) in a dislocating manner to form a linear slide rail.
Description
Technical field
The present invention relates to a kind of for checking the gas tightness testing machine whether automobiles without inner tubes tyre rim weld seam leaks gas.
Background technology
The motor vehicle of many such as trucks, minibus and so on generally adopts tubeless tyre, is commonly called as vacuum tyre.Tubeless tyre is similar to conventional tyre in appearance, difference be tubeless tyre cover tire inwall on addition of thick layer about 2 ~ 3mm be used for specially seal the rubber sealant of gas, it adheres to by the method for sulfuration, below the tyre surface that sealant faces, the self-adhesive layer that the special mixture that against one deck half finished rubber is made.When puncture of tire, the hole that self-adhesive layer can be about to pierce through certainly bonds, the tubeless tyre of the self-adhesive layer that is therefore otherwise known as.Tubeless tyre is when boring a hole, pressure can not sharply decline, and is conducive to safety traffic, and tubeless tyre does not exist the abrasion between Tire & Tube and blocks, its impermeability is good, directly can be dispelled the heat by wheel rim, temperature rise is low, long service life, structure are simple, lightweight.But because tubeless tyre jointly forms gas storage space with Automobile steel ring wheel rim, the complete totally enclosed inner tube of a tyre of neither one is as interior reservoir headroom, if therefore Automobile steel ring wheel rim has the defect such as crack, holes to cause a flat tire, major hidden danger is caused to traffic safety.
Generally adopts thickness is at present that the rectangular hot rolled steel plate of more than 5 millimeters encloses and justifies equipment circle and become circular arc, again two far-ends are manufactured Automobile steel ring wheel rim by the production technology that rolling technology is shaped after being welded into annulus, in general high-quality plate does not have the defect such as crack, holes, ensure that the key of tyre rim quality is exactly that the impermeability of steel plate two ends butt welding place weld seam will be got well, never allowed the defect such as crack or holes.Application number is the technical solution that the patent of invention of " a kind of rim for automobile wheel air-tightness detection method and the device " by name of 201010533635.X provides a kind of sound toward sending when closing and inflate and then give vent to anger with crack, sensor detecting commissure or holes in tyre rim, but the program requires very high to the background sound of environment, need very quiet surrounding enviroment to coordinate, use because noise is easy to very greatly wrong report if be put into general workshop.And the sound that various crack or holes send when giving vent to anger also is not quite similar, and is difficult to carry out detecting and differentiating with simple sensor or common sound judgment rule.Also be referred to a kind of toward closing the tyre rim commissure water spray of inflation with traditional hydraulic pressure detection method of observing the current that commissure is formed with or without the spraying high-pressure gas spilt by leakage hole in the middle of the instructions of this patent, but the method and adopt the equipment of the method certainly will need to consume a large amount of water resources, and tyre rim can be drenched by water sheet and gets rusty easily.。
Summary of the invention
[technical matters of solution]
What the present invention will solve is exactly for the technical scheme that above-mentioned application number is the invention of 201010533635.X exist high and be difficult to deal with common sensor and sound judgment rule these two technical matterss of the different sounds that various crack or holes send to ambient noise level requirement, and above-mentioned traditional hydraulic pressure detection method consumes water resource greatly and easily cause tyre rim to be drenched the defect of getting rusty, and provides the technical solution of a kind of low cost and practicality.
[technical scheme of employing]
Automobiles without inner tubes tyre rim gas tightness testing machine provided by the present invention adopts and is filled with gases at high pressure then from workman toward brush suds on weld seam or liquid detergent aqueous solution toward closing in tyre rim, has bubble-free technological means to realize the inspection of tyre rim weld joint air-tight by visual inspection commissure.In addition, described automobiles without inner tubes tyre rim gas tightness testing machine adopts tilting table to place wheel rim, and operative employee only need be bowed a little just can with the weld seam of the view tyre rim of front direct-view.
Described automobiles without inner tubes tyre rim gas tightness testing machine adopts to favour surface level installs posting elastic cushion and remaining that Automobile steel ring wheel rim is held on by parallel steel ring support plate and steel ring top board and form the inner confined space of a closed tyre rim between the two, and then be filled with gases at high pressure by a high-pressure gas pipe connector interface of steel ring top board toward the inside confined space of described tyre rim.Drive described steel ring top board to mention on steel ring support plate, to place tyre rim with vacating space for workman and what depress from above to form the inner confined space of tyre rim is the driving element of the such as double-acting cylinder or pneumohydraulic pressure-cylinder and so on that is fixedly connected with steel ring top board.
Upper and lower end face due to Automobile steel ring wheel rim is parallel, so in order to ensure that described steel ring top board and steel ring support plate remain parallel with the sealing completely realized smoothly tyre rim, the straight line sliding rail position-limit mechanism of at least three guide rods that the present invention's employing is fixedly connected with steel ring top board and guide rod.The present invention does not adopt traditional straight tube shape sliding bearing to add the straight line sliding rail position-limit mechanism of axle sleeve mechanism as guide rod, as preferably, have employed a kind of recessed edge wheel in one embodiment and the slippage supporting of guide rod of installing the inclination in equipment and the spacing of straight line sliding rail thereof are realized to supporting guidance set.The vital part of described recessed edge wheel to supporting guidance set is at least two recessed edge wheels of the both sides tilted upward arranged in dislocation relative to described guide rod.Because described guide rod favours vertical direction, so will the recessed edge of described recessed edge wheel be close under himself gravity and the Action of Gravity Field of steel ring top board that is fixedly connected with it, slippage on the angled straight lines track that like this then guide rod just can only limit in the internal common tangent position of the recessed edge of described recessed edge wheel all the time, thus ensure that described steel ring top board is parallel all the time with steel ring support plate.
Because the distance between recessed edge wheel is generally much larger than the axial length of the straight tube shape sliding bearing of common specification, therefore the eliminating effect of described recessed edge wheel to the radial deflection of supporting guidance set in the straight line glide direction of guide rod seems more superior than common sliding bearing mechanism.
Compared to traditional straight tube shape sliding bearing and axle sleeve mechanism thereof, described recessed edge wheel is open structure to supporting guidance set, and person easy to use smears railway grease toward the recessed edge place of guide rod and recessed edge wheel at ordinary times or lubricating oil lubricates.And produce between guide rod and recessed edge wheel be rolling friction and the sliding friction produced between unconventional and straight tube shape sliding bearing, therefore adopt described recessed edge wheel can obtain supporting guidance set and add the better result of use of axle sleeve mechanism than traditional sliding bearing, and convenient care and maintenance effect.
In addition, the recessed edge wheel of one embodiment of the present of invention have employed the structure of adjustable recessed edge wheel installation site to supporting guidance set, like this then can when the recessed edge of recessed edge wheel or guide rod cause the straight line sliding rail of the guide rod tilting to install that skew occurs because Long-Time Service is worn, the installation shaft position of the recessed edge wheel of in good time suitable adjustment, the straight line sliding rail of the guide rail that correct tilt is installed, thus ensure that described steel ring top board remains parallel with steel ring support plate hard-wired on tilting table in slippage stroke, so just effectively can close the parallel end faces up and down of tyre rim to form inner confined space.
Finally, the function of when the present invention's assembling or maintenance the angle of inclination of described steel ring top board being carried out to minute adjustment can be realized after adopting the structure of described adjustable recessed edge wheel installation site, thus guarantee parallel with between steel ring support plate of described steel ring top board.
[beneficial effect of realization]
First, the present invention adopts and inflates then brush suds or liquid detergent aqueous solution and observe toward closing in wheel rim and have bubble-free to emerge this simple directly technological means, and cost ineffective fruit is good, and noise of being fearless, be applicable to the workshop under most of conventional environment.And little compared to traditional hydraulic pressure detection method water consumption, also not too easily cause tyre rim large area wet by water causing to get rusty.
Secondly, the present invention adopts the tilting table meeting ergonomics to also mitigate the labour intensity of operative employee, compared with keeping flat the technical scheme of workpiece with current most of machine tool, operative employee just can look at the weld seam of angle views tyre rim straight with front without the need to bending over, the comfort level that improve work alleviates physical demands.
Because the distance between described recessed edge wheel is generally much larger than the axial length of the straight tube shape sliding bearing of common specification, therefore the eliminating effect of described recessed edge wheel to the radial deflection of supporting guidance set in the straight line glide direction of guide rod seems more superior than common sliding bearing mechanism.Compared to traditional straight tube shape sliding bearing and axle sleeve mechanism thereof, described recessed edge wheel is open structure to supporting guidance set, and person easy to use smears railway grease toward the recessed edge place of guide rod and recessed edge wheel at ordinary times or lubricating oil lubricates.And produce between guide rod and recessed edge wheel be rolling friction and the sliding friction produced between unconventional and straight tube shape sliding bearing, therefore adopt described recessed edge wheel can obtain supporting guidance set and add the better result of use of axle sleeve mechanism than traditional sliding bearing, and convenient care and maintenance effect.
And with regard to the technical scheme of the structure that present invention employs adjustable recessed edge wheel installation site, even if there are the wearing and tearing of recessed edge in described recessed edge wheel or guide rod outer wall weares and teares because of Long-Time Service, only need regulate slightly the installation site of recessed edge wheel, it can be made again to recover normal using function, add axle sleeve mechanism compared to traditional sliding bearing being difficult to replacing and adjustment installation site and can say that use is more effective, it is more convenient to maintain.After have employed the technical scheme of the structure of adjustable recessed edge wheel installation site, when also can be implemented in the present invention's assembling or keep in repair, the angle of inclination of described steel ring top board is carried out to the function of minute adjustment, thus guarantee that described steel ring top board remains parallel with steel ring support plate.
Accompanying drawing explanation
Below in conjunction with Figure of description and two specific embodiments, the present invention is further detailed explanation.
Fig. 1, automobiles without inner tubes tyre rim production and processing technology schematic diagram;
Fig. 2, automobiles without inner tubes tyre rim air-tight test down side oblique viewing angle appearance schematic diagram;
The working state schematic representation of Fig. 3, automobiles without inner tubes tyre rim air-tight test down side oblique viewing angle;
Oblique viewing angle appearance schematic diagram on rear side of Fig. 4, automobiles without inner tubes tyre rim gas tightness testing machine;
The explosive decomposition schematic diagram of oblique viewing angle on front side of Fig. 5, steel ring top board inclination slippage driving mechanism;
The explosive decomposition schematic diagram of oblique viewing angle on rear side of Fig. 6, steel ring top board inclination slippage driving mechanism;
Fig. 7, recessed edge wheel coordinate schematic diagram to supporting guidance set with guide rod;
Fig. 8, recessed edge wheel are to supporting guidance set appearance schematic diagram;
Fig. 9, recessed edge wheel are by the cross sectional representation of center line;
The recessed edge wheel that the recessed edge wheel position of Figure 10, embodiment 2 is adjustable is to supporting guidance set schematic diagram;
The recessed edge wheel that the recessed edge wheel position of Figure 11, embodiment 2 is adjustable tentatively disassembles schematic diagram to supporting guidance set;
The recessed edge wheel that the recessed edge wheel position of Figure 12, embodiment 2 is adjustable disassembles schematic diagram to supporting guidance set;
The recessed edge wheel that the recessed edge wheel position of Figure 13, embodiment 2 is adjustable disassembles schematic diagram to another oblique viewing angle of supporting guidance set;
[Reference numeral]
1: steel ring welding line; 2: frame; 3: steel ring support plate; 4: steel ring top board; 5: guide rod; 6: steel ring top board drives cylinder;
7: recessed edge wheel is to supporting guidance set; 8: high-pressure gas pipe connector interface; 9: steel ring divider; 10: recessed edge wheel;
11: recessed edge wheel erecting frame; 12: rotating shaft; 13: rotating shaft mounting bracket; 14: rotating shaft position regulates cushion block;
15: recessed edge; 16: jump-ring slot; 17: rolling bearing defining flange; 18: automobiles without inner tubes tyre rim;
Preferred embodiment
As shown in Figure 1, it is the rectangular hot rolled steel plate circle circle of more than 5 millimeters that current Automobile steel ring enterprise generally adopts thickness, again two far-ends are manufactured automobiles without inner tubes tyre rim by the production technology that rolling technology is shaped after being welded into annulus, in general high-quality plate does not have the defect such as crack, holes, ensure that the key of tyre rim quality is exactly that the impermeability of the steel ring welding line 1 of steel plate two ends butt welding place will be got well, the gas leak phenomenon never allowing commissure to have the defect such as crack or holes to cause occurs.
[embodiment 1]
As shown in Figures 2 to 6, an embodiment of a kind of automobiles without inner tubes tyre rim gas tightness testing machine provided by the invention drives cylinder 6, recessed edge wheel to form supporting guidance set 7 and electric control system by frame 2, steel ring support plate 3, steel ring top board 4, guide rod 5, steel ring top board.Its mid frame 2 have employed the design of tilting table, the steel ring support plate 3 it being lined with elastic cushion is just installed on frame 2 so that the inclination angle favouring surface level is fastening, described steel ring top board 4 is parallel with steel ring support plate 3, is also provided with elastic cushion below it.As preferably, described elastic cushion is the rubber blanket of nitrile rubber material.As shown in Figure 2, make its weld seam just to operator on the rubber blanket that during work, automobiles without inner tubes tyre rim 18 is placed in the steel ring support plate 3 of inclination by operator.As shown in Fig. 3 and Fig. 9, the worktable of described frame 2 has steel ring divider 9, described steel ring divider 9 can carry out regulating limiting described automobiles without inner tubes tyre rim 18 and be positioned over appropriate location on the rubber blanket of steel ring support plate 3.Then described steel ring top board 4 presses down, the rubber blanket on steel ring support plate 3 is coordinated to be closed the inner space of automobiles without inner tubes tyre rim 18 with its lower rubber pad, again by the high-pressure gas pipe connector interface on described steel ring top board 48 to its in be filled with gases at high pressure, meanwhile operator dips suds or liquid detergent solution with hairbrush and brushes on the weld seam of automobiles without inner tubes tyre rim 18, because inside is filled with gases at high pressure, if weld seam there is the defect such as crack or leakage hole just there will be bubbling phenomenon, if weldquality well, does not observe bubbling phenomenon.
As shown in Figures 2 to 7, the critical moving components of a kind of automobiles without inner tubes tyre rim gas tightness testing machine provided by the invention is described steel ring top board 4, as preferably, the driving element of described steel ring top board 4 is double-acting cylinder or double acting pneumohydraulic pressure-cylinder, in the present embodiment, the driving element of described steel ring top board 4 is that a steel ring top board as shown in Figures 2 to 7 drives cylinder 6.Described steel ring top board 4 drives cylinder 6 to drive by steel ring top board and carries out upper and lower slippage, rely on and be fasteningly installed at least three guide rods 5 on steel ring top board 4 and supporting straight line sliding rail position-limit mechanism keeps described steel ring top board 4 in slipping, be parallel to the direction of steel ring support plate 3 all the time with guide rod 5, so just can guarantee that steel ring top board 4 can coordinate the inner space deadend effectively of bubble-tight automobiles without inner tubes tyre rim 18 to be tested with steel ring support plate 3.As preferably, the quantity of guide rod 5 is equally distributed three in this example, and every root guide rod is all furnished with a recessed edge wheel to the straight line sliding rail position-limit mechanism of supporting guidance set 7 as guide rod 5.
As shown in Figure 7 to 9, described recessed edge wheel to tilt the fastening top being installed on frame 2, wherein containing at least two recessed edge wheels 10 to supporting guidance set 7.In the present embodiment, as preferably, described recessed edge wheel is to supporting guidance set 7 containing a pair recessed edge wheel 10, this two recessed edge wheel 10 is the both sides tilted upward arranged in dislocation relative to described guide rod 5, and described guide rod 5 is the internal common tangent bands of position inserting in described recessed edge wheel 10 edge.Because described guide rod 5 favours vertical direction, so will the recessed edge of described two recessed edge wheels 10 be close under himself gravity and the Action of Gravity Field of steel ring top board 4 that is fixedly connected with it, slippage on the angled straight lines track that like this then guide rod 5 just can only limit at the tangency location of the recessed edge of described two recessed edge wheels 10 and guide rod 5 outer wall, as long as this angled straight lines race orthogonal is in steel ring support plate 3, just can ensure that described steel ring top board 4 is parallel all the time with steel ring support plate 3 in upper and lower slipping.As shown in Figure 9, described recessed edge wheel 10 is except the rolling bearing defining flange 17 with conventional installation ball ball bearing and jump-ring slot 16, and its special feature is just that its edge is the recessed edge 15 with guide rod 5 outer wall adaptation.In the present embodiment, as preferably, described guide rod 5 is cylindrical, and described is the recessed edge of semicircle adopting the milling of semicircle milling cutter with the recessed edge 15 of guide rod 5 outer wall adaptation, and the internal diameter of described semicircle is identical with the external diameter of described guide rod 5.Like this then upper and lower two recessed edge wheels 10 bilateral dislocation clamping under, described guide rod 5 just can only be close to two of this two recessed edge wheel 10 and carry out straight line slippage with the recessed edge 15 of cylinder guide 5 adaptation.And because the distance between two recessed edge wheels 10 is generally much larger than the axial length of the straight tube shape sliding bearing of common specification, therefore the eliminating effect of described recessed edge wheel to the radial deflection of supporting guidance set 7 in the straight line glide direction of guide rod 5 seems more superior than common sliding bearing.As preferably, guide rod 5 plating hard chromium on surface, recessed edge wheel 10 adopts the hard alloy steel materials such as 40Cr, because rolling friction is far smaller than sliding friction, and recessed edge wheel can lubricate toward guide rod and the recessed edge coating lubricating oil of roller or railway grease easily to the open mounting structure of supporting guidance set 7.Therefore adopt described recessed edge wheel can realize more spacing than traditional sliding bearing better straight line sliding rail to supporting guidance set 7, and care and maintenance is more than adopting the common mechanisms of sliding bearing convenient.
[embodiment 2]
As shown in Figure 10 to Figure 13, the difference of the second embodiment of the present invention and the first embodiment above-mentioned is only that the installation site of recessed edge wheel to the recessed edge wheel 10 supporting guidance set 7 in the second embodiment is not fixing, is cushion block 14 to be regulated to carry out meticulous adjustment by rolling bearing rotating shaft position as shown in Figure 10 to Figure 13.Consider that the recessed edge 15 of described guide rod 5 and recessed edge wheel 10 can inevitably wear and tear after long-term use and cause the straight line glide direction generation deflection of guide rod 5, thus cause steel ring top board 4 cannot with steel ring support plate 3 keeping parallelism, therefore must adjust comparatively the installation site of recessed edge wheel 10 after the recessed edge 15 of the outer wall of guide rod 5 or recessed edge wheel 10 weares and teares.As shown in Figure 11 to 13, between described recessed edge wheel 10 and its rotating shaft 12, rolling bearing is housed, the rotating shaft 12 coordinated with rolling bearing inner ring regulates cushion block 14 to be arranged among recessed edge wheel erecting frame 11 by rotating shaft mounting bracket 13 and rotating shaft position, rotating shaft 12 is fastening to be installed in the middle of two rotating shaft mounting brackets 13, rotating shaft mounting bracket 13 regulates with rotating shaft position and is fastened on recessed edge wheel erecting frame 11 together with cushion block 14, and described rotating shaft position regulates cushion block 14 between described rotating shaft mounting bracket 13 and the corresponding installation position of recessed edge wheel erecting frame 11.After the shift phenomenon that the generation outer wall of guide rod 5 or the recessed edge of recessed edge wheel 10 wear and tear in the guide rod 5 straight line glide direction caused, just can regulate between cushion block 14 and rotating shaft mounting bracket 13 at described rotating shaft position and add the pad of suitable thickness and the straight line glide direction of recoverable guide rod 5.
The present invention is disclosed by above-mentioned embodiment and is set forth; but above-mentioned embodiment is not used for limiting the claim advocated of the present invention, any amendment that design of the present invention makes, increase and decrease, replacement, improvement, change and its technical scheme formed of being derived from still falls among the protection domain that claim of the present invention advocates.
Claims (3)
1. an automobiles without inner tubes tyre rim gas tightness testing machine, be made up of the straight line sliding rail position-limit mechanism of frame (2), steel ring support plate (3), steel ring top board (4), guide rod (5), guide rod, the driving element of steel ring top board and supporting electric control system, it is characterized in that:
The table inclination of described frame (2) is in surface level, and described steel ring support plate (3) is installed on the tilting table of frame (2), and described steel ring support plate (3) posts elastic cushion;
Elastic cushion is also posted relative to the one side of steel ring support plate (3) in the below of described steel ring top board (4);
Described steel ring top board (4) limits its position by the straight line sliding rail position-limit mechanism of at least three guide rods (5) of being fastenedly connected with its formation and described guide rod and is parallel to described steel ring support plate (3) all the time;
The straight line sliding and position limitation mechanism of described guide rod comprises at least two recessed edge wheels (10) relative to the both sides tilted upward arranged in dislocation of described guide rod (5), the edge of described recessed edge wheel (10) is the recessed edge (15) caved inward, and described guide rod (5) inserts in the internal common tangent band of position at all recessed edge wheel 10 edges;
The straight line sliding and position limitation mechanism of described guide rod has the device regulating recessed edge wheel (10) installation site.
2. a kind of automobiles without inner tubes tyre rim gas tightness testing machine according to claim 1, is characterized in that:
The straight line sliding and position limitation mechanism of described guide rod comprises a pair recessed edge wheel (10), and described guide rod (5) inserts in the internal common tangent band of position at described two recessed edge wheel 10 edges;
Described guide rod (5) has cylindrical outer shape;
The shape of the recessed edge (15) of described recessed edge wheel (10) is the semicircle caved inward, and the internal diameter of described semicircle is identical with the cylindrical outer diameter of guide rod (5);
The device of the recessed edge wheel of described adjustment (10) installation site regulates cushion block (14) to form by recessed edge wheel erecting frame (11), the rolling bearing adaptive with described recessed edge wheel (10), the rotating shaft (12) coordinated with rolling bearing inner ring, rotating shaft mounting bracket (13) and rotating shaft position;
Described rotating shaft (12) is fastening to be installed in the middle of two rotating shaft mounting brackets (13), the each adjustment together with cushion block (14) with a rotating shaft position of each rotating shaft mounting bracket (13) is fastened on recessed edge wheel erecting frame (11), and described rotating shaft position regulates cushion block (14) to be positioned between described rotating shaft mounting bracket (13) and the corresponding installation position of recessed edge wheel erecting frame (11).
3. any one automobiles without inner tubes tyre rim gas tightness testing machine according to claim 1 and 2, is characterized in that:
The driving element of described steel ring top board is double-acting cylinder or double acting pneumohydraulic pressure-cylinder;
Described elastic cushion is the rubber mount of nitrile rubber material;
The worktable of described frame (2) there is the steel ring divider (9) limiting steel ring stop position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183571.8A CN104729806A (en) | 2015-04-19 | 2015-04-19 | Tubeless car steel-ring rim air tightness detecting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183571.8A CN104729806A (en) | 2015-04-19 | 2015-04-19 | Tubeless car steel-ring rim air tightness detecting machine |
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| CN104729806A true CN104729806A (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510183571.8A Pending CN104729806A (en) | 2015-04-19 | 2015-04-19 | Tubeless car steel-ring rim air tightness detecting machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002013A (en) * | 2016-07-06 | 2016-10-12 | 山西桐封技工学校 | Welding seam testing device |
| CN107449560A (en) * | 2015-10-13 | 2017-12-08 | 吴红平 | Welding airtightness test device and its method of testing with digital screen |
| CN114088312A (en) * | 2021-11-11 | 2022-02-25 | 国网新疆电力有限公司电力科学研究院 | Improved aluminum casting air tightness detection device and detection method thereof |
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| CN103868657A (en) * | 2014-03-25 | 2014-06-18 | 中信戴卡股份有限公司 | Rotary type vehicle-wheel airtightness detection machine |
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| CN203745154U (en) * | 2014-03-25 | 2014-07-30 | 中信戴卡股份有限公司 | Vehicle wheel airtightness detection machine |
| CN203772502U (en) * | 2014-03-25 | 2014-08-13 | 中信戴卡股份有限公司 | Rotary-type wheel airtightness detection machine |
| CN204758231U (en) * | 2015-04-19 | 2015-11-11 | 常山优博特机电科技有限公司 | Tubeless automobile steel ring rim air -tight test machine |
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