CN205175625U - Special sealed test machine of valve retainer conical surface - Google Patents
Special sealed test machine of valve retainer conical surface Download PDFInfo
- Publication number
- CN205175625U CN205175625U CN201520999784.3U CN201520999784U CN205175625U CN 205175625 U CN205175625 U CN 205175625U CN 201520999784 U CN201520999784 U CN 201520999784U CN 205175625 U CN205175625 U CN 205175625U
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- hunting
- cylinder
- sleeve
- spring
- conical surface
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Abstract
The utility model discloses a special sealed test machine of valve retainer conical surface, include operation cylinder, mount pad, hold -down mechanism and leak hunting the mechanism, the operation cylinder vertical fixation is at the mount pad upside, hold -down mechanism fixes the head at operation cylinder tailpiece of the piston rod, includes the universal connection cover, compresses tightly cylinder, connecting block, connecting axle, first spring and pressure head, leaking hunting the establishment of institution in mount pad bottom, corresponding with the hold -down mechanism position, the mechanism of leaking hunting encloses including leak hunting cylinder liner, second spring, supporting pin, position sleeve and the seat that leaks hunting. The utility model discloses simple structure, convenient operation uses reliable and stablely. But valve auto -eject under the effect of second spring restoring force after the test, labour saving and time saving takes out and changes very convenience, has improved detection efficiency greatly. Because the valve closely cooperates with the seat circle non - of leaking hunting, can effectively avoid the valve retainer conical surface to damage when the valve pops out simultaneously, reduce manufacturing cost. Leak hunting seat circle of change, the spiracular gas tightness of the different specifications of detectable, the commonality is strong.
Description
Technical field
The utility model relates to a kind of engine valve pick-up unit, and especially a kind of engine valve retainer conical surface air-tightness detection device, belongs to testing tool technical field.
Background technology
Engine breathing pupil before product export, need detect its conical surface seal after producing and machining.The manual survey sealing instrument principle that existing small serial production uses is: detect in fixture by valve press-in, press seal lid, then being filled with pressurized air, having bubble-free to occur by observing in the water tank that is connected with vent port, judge valve whether qualified (have bubble and defective).Because valve is pressed into detection fixture in said structure, valve coordinates closely with detection fixture, and test terminates rear valve and not easily takes out, and not only detection efficiency is low, and very easily damages valve when taking out.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, easy to operate, valve non-damageable valve retainer conical surface Special seal test machine.
The utility model is achieved by the following technical programs:
A kind of valve retainer conical surface Special seal test machine, comprises working cylinder, mount pad, hold-down mechanism and leak checking mechanism, working cylinder is vertically fixed on the upside of mount pad, and working cylinder piston rod is through mount pad top, hold-down mechanism is fixed on working cylinder piston rod end, hold-down mechanism comprises universal adapter sleeve, compression cylinder, contiguous block, coupling shaft, first spring and pressure head, described universal adapter sleeve is fixed on working cylinder piston rod end, compression cylinder is fixed on the downside of universal adapter sleeve, compression cylinder side is provided with air admission hole, contiguous block, coupling shaft, first spring and pressure head are all arranged in compression cylinder inlet plenum, contiguous block upper end is fixed on compression cylinder inlet plenum top, contiguous block lower end and coupling shaft upper end are connected, pressure head is sleeved on coupling shaft lower end, and with coupling shaft lower end mobile link, first spring housing is contained on coupling shaft, first both ends of the spring is connected with contiguous block and pressure head respectively, leak checking mechanism is arranged on bottom mount pad, corresponding with hold-down mechanism position, leak checking mechanism comprises the cylinder sleeve that leaks hunting, second spring, supporting pin, locating sleeve and the seat ring that leaks hunting, the cylinder sleeve that leaks hunting is fixed on bottom mount pad, second spring supporting is leaking hunting in the endoporus of cylinder sleeve lower end, supporting pin is supported on the second spring upper end, supporting pin and the cylinder sleeve lower end endoporus mobile link that leaks hunting, locating sleeve is arranged on and leaks hunting in the endoporus of cylinder sleeve upper end, the seat ring that leaks hunting is supported on cylinder sleeve top of leaking hunting, engine valve stem lower end is successively through seat ring and the locating sleeve of leaking hunting, be supported on supporting pin, during test, the head portion that valve retainer conical surface coincide with seat ring endoporus top of leaking hunting, head portion that, leak hunting seat ring, the cavity leaked hunting between cylinder sleeve and locating sleeve forms discharge air chamber, cylinder sleeve side of leaking hunting is provided with the vent port communicated with discharge air chamber.
The purpose of this utility model can also be realized further by following technical measures.
Aforesaid valve retainer conical surface Special seal test machine, is provided with O-ring seal bottom wherein said compression cylinder.
Aforesaid valve retainer conical surface Special seal test machine, wherein said seat ring endoporus top of leaking hunting is taper.
Aforesaid valve retainer conical surface Special seal test machine, extends locating piece bottom the wherein said cylinder sleeve that leaks hunting.
Aforesaid valve retainer conical surface Special seal test machine, the wherein said seat ring and leak hunting between cylinder sleeve top and be provided with O-ring seal of leaking hunting.
The utility model structure is simple, easy to operate, uses reliable and stable.During test, engine valve stem lower end is supported on supporting pin through leak hunting seat ring and locating sleeve, then working cylinder is started, working cylinder piston rod drives descending being pressed on of compression cylinder to leak hunting on seat ring, now under pressure head effect, the head portion that valve retainer conical surface coincide with seat ring endoporus top of leaking hunting, then in compression cylinder, be filled with the impermeability that pressurized air can detect valve.Test terminates rear working cylinder and drives compression cylinder up, and valve is automatic spring under the second spring-return power effect, time saving and energy saving, and taking-up is changed very convenient, substantially increases detection efficiency.Simultaneously because valve coordinates with seat ring not close of leaking hunting, the valve retainer conical surface effectively can be avoided to damage when valve ejects, reduce production cost.In addition, pressure head, under the first spring action, can ensure that the head portion that valve retainer conical surface coincide good with seat ring endoporus top of leaking hunting, improve accuracy of detection.Replacing is leaked hunting seat ring, can detect the impermeability of different size valve, highly versatile.Locating sleeve can rock by anti-air-stop gate, ensures that valve location is reliable, further increases the bubble-tight accuracy of detection of valve.
Advantage and disadvantage of the present utility model, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, these embodiments, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises working cylinder 1, mount pad 2, hold-down mechanism 3 and leak checking mechanism 4.Working cylinder 1 is vertically fixed on the upside of mount pad 2 by several bolt, and the piston rod 11 of working cylinder 1 is through mount pad 2 top.Mount pad 2 comprises top board 21, base plate 22 and many root posts 23, and top board 21, base plate 22 and many root posts 23 are fixed into framed structure.
Hold-down mechanism 3 is fixed on working cylinder piston rod 11 termination, and hold-down mechanism 3 comprises universal adapter sleeve 31, compression cylinder 32, contiguous block 33, coupling shaft 34, first spring 35 and pressure head 36.Universal adapter sleeve 31 is fixed on working cylinder piston rod 11 termination by briquetting 37 and socket head cap screw.Compression cylinder 32 is bolted on the downside of universal adapter sleeve 31 by multiple, is provided with O RunddichtringO 38 bottom compression cylinder 32, and compression cylinder 32 side is provided with air admission hole 39.Contiguous block 33, coupling shaft 34, first spring 35 and pressure head 36 are all arranged in compression cylinder 32 inlet plenum, contiguous block 33 upper end screws at compression cylinder 32 inlet plenum top, coupling shaft 34 upper end screws in contiguous block 33 lower end, pressure head 36 is sleeved on coupling shaft 34 lower end, and can move up and down along coupling shaft 34 lower end, first spring 35 is sleeved on coupling shaft 34, and the first spring 35 two ends are connected with contiguous block 33 and pressure head 36 respectively.
Leak checking mechanism 4 is arranged on bottom mount pad 2, corresponding with hold-down mechanism 3 position, and leak checking mechanism 4 comprises leak hunting cylinder sleeve 41, second spring 42, supporting pin 43, locating sleeve 44 and the seat ring 45 that leaks hunting.Leak hunting bottom cylinder sleeve 41 and extend locating piece 46, the cylinder sleeve 41 that leaks hunting is fixed on mount pad base plate 22 by locating piece 46, second spring 42 is supported on and leaks hunting in the endoporus of cylinder sleeve 41 lower end, and supporting pin 43 is supported on the second spring 42 upper end, and supporting pin 43 can move up and down along the cylinder sleeve 41 lower end endoporus that leaks hunting.Locating sleeve 44 is arranged on and leaks hunting in the endoporus of cylinder sleeve 41 upper end, and the seat ring 45 that leaks hunting is supported on cylinder sleeve 41 top of leaking hunting, and leak hunting seat ring 45 and leak hunting between cylinder sleeve 41 top and be provided with O RunddichtringO 47, and seat ring 45 endoporus top 451 of leaking hunting is for taper.Valve 5 bar subordinate end is successively through seat ring 45 and the locating sleeve 44 of leaking hunting, be supported on supporting pin 43, during test, the valve 5 head valve retainer conical surface coincide with seat ring 45 endoporus top 451 of leaking hunting, valve 5 head, the seat ring 45 that leaks hunting, the cavity leaked hunting between cylinder sleeve 41 and locating sleeve 44 form discharge air chamber 48, and cylinder sleeve 41 side of leaking hunting is provided with the vent port 49 communicated with discharge air chamber 48.
Utility model works principle is as follows: access draft tube and gas outlet (not shown in FIG.) respectively at the air admission hole 39 of compression cylinder 32 and vent port 49 place of the cylinder sleeve 41 that leaks hunting, and gas outlet is put into water tank.First valve 5 bar subordinate end is supported on through leak hunting seat ring 45 and locating sleeve 44 during test on the supporting pin 43 leaked hunting in the endoporus of cylinder sleeve 41 lower end, then working cylinder 1 is started, working cylinder piston rod 11 drives descending being pressed on of compression cylinder 32 to leak hunting on seat ring 45, now the press-in of valve 5 head is leaked hunting in seat ring 45 endoporus by pressure head 36, the valve 5 head valve retainer conical surface is coincide with seat ring 45 endoporus top 451 of leaking hunting, first spring 35 and the second spring 42 compress, then in compression cylinder 32 inlet plenum, the pressurized air that pressure is not less than 0.3Mpa is filled with by the air admission hole 39 of compression cylinder 32 side, continuous ventilation more than 3 seconds, bubble-free is had to emerge in the water tank that observation is connected with vent port 49, bubble then valve 5 of emerging is had to be unacceptable product, bubble-free is then certified products.Test terminates rear stopping ventilation, and working cylinder 1 drives compression cylinder 32 up, and the first spring 35 is replied, and valve 5 is automatic spring under the second spring 42 restoring force effect, can test next part valve 5.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (5)
1. a valve retainer conical surface Special seal test machine, is characterized in that: comprise working cylinder, mount pad, hold-down mechanism and leak checking mechanism, working cylinder is vertically fixed on the upside of mount pad, and working cylinder piston rod is through mount pad top, hold-down mechanism is fixed on working cylinder piston rod end, hold-down mechanism comprises universal adapter sleeve, compression cylinder, contiguous block, coupling shaft, first spring and pressure head, described universal adapter sleeve is fixed on working cylinder piston rod end, compression cylinder is fixed on the downside of universal adapter sleeve, compression cylinder side is provided with air admission hole, contiguous block, coupling shaft, first spring and pressure head are all arranged in compression cylinder inlet plenum, contiguous block upper end is fixed on compression cylinder inlet plenum top, contiguous block lower end and coupling shaft upper end are connected, pressure head is sleeved on coupling shaft lower end, and with coupling shaft lower end mobile link, first spring housing is contained on coupling shaft, first both ends of the spring is connected with contiguous block and pressure head respectively, leak checking mechanism is arranged on bottom mount pad, corresponding with hold-down mechanism position, leak checking mechanism comprises the cylinder sleeve that leaks hunting, second spring, supporting pin, locating sleeve and the seat ring that leaks hunting, the cylinder sleeve that leaks hunting is fixed on bottom mount pad, second spring supporting is leaking hunting in the endoporus of cylinder sleeve lower end, supporting pin is supported on the second spring upper end, supporting pin and the cylinder sleeve lower end endoporus mobile link that leaks hunting, locating sleeve is arranged on and leaks hunting in the endoporus of cylinder sleeve upper end, the seat ring that leaks hunting is supported on cylinder sleeve top of leaking hunting, engine valve stem lower end is successively through seat ring and the locating sleeve of leaking hunting, be supported on supporting pin, during test, the head portion that valve retainer conical surface coincide with seat ring endoporus top of leaking hunting, head portion that, leak hunting seat ring, the cavity leaked hunting between cylinder sleeve and locating sleeve forms discharge air chamber, cylinder sleeve side of leaking hunting is provided with the vent port communicated with discharge air chamber.
2. valve retainer conical surface Special seal test machine as claimed in claim 1, is characterized in that: be provided with O-ring seal bottom described compression cylinder.
3. valve retainer conical surface Special seal test machine as claimed in claim 1, is characterized in that: described in seat ring endoporus top of leaking hunting be taper.
4. valve retainer conical surface Special seal test machine as claimed in claim 1, is characterized in that: described in leak hunting bottom cylinder sleeve and extend locating piece.
5. the valve retainer conical surface Special seal test machine as described in claim 3 or 4, is characterized in that: described in leak hunting seat ring and leak hunting between cylinder sleeve top and be provided with O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520999784.3U CN205175625U (en) | 2015-12-07 | 2015-12-07 | Special sealed test machine of valve retainer conical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520999784.3U CN205175625U (en) | 2015-12-07 | 2015-12-07 | Special sealed test machine of valve retainer conical surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205175625U true CN205175625U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520999784.3U Active CN205175625U (en) | 2015-12-07 | 2015-12-07 | Special sealed test machine of valve retainer conical surface |
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| CN (1) | CN205175625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403368A (en) * | 2015-12-07 | 2016-03-16 | 江苏沃得机电集团有限公司 | Sealing testing machine especially for valve conical surface |
-
2015
- 2015-12-07 CN CN201520999784.3U patent/CN205175625U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403368A (en) * | 2015-12-07 | 2016-03-16 | 江苏沃得机电集团有限公司 | Sealing testing machine especially for valve conical surface |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |