CN205136872U - Experimental flexible joint that uses - Google Patents
Experimental flexible joint that uses Download PDFInfo
- Publication number
- CN205136872U CN205136872U CN201520811638.3U CN201520811638U CN205136872U CN 205136872 U CN205136872 U CN 205136872U CN 201520811638 U CN201520811638 U CN 201520811638U CN 205136872 U CN205136872 U CN 205136872U
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- nut
- macropore
- outer nut
- flexible joint
- shoulder hole
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Abstract
The utility model provides an experimental flexible joint that uses, has seted up the shoulder hole including the interior nut of mutually supporting and outer nut on the outer nut, and the spigot joint passes the aperture and the equipment tube coupling of shoulder hole from the inside of outer nut, the spigot joint be step hollow shaft structure, its afterbody keeps off the downthehole greatly of outside nut shoulder hole, interior nut also install the downthehole greatly of outside nut shoulder hole to the internal thread of interior nut links to each other with the work piece screw thread, and the work piece sets up the rubber ring through interior nut and spigot joint joint between interior nut and the spigot joint. The utility model discloses work piece and equipment are connected conveniently, and it is little to screw up moment, need not other instruments during the connection, can meet the demands through manual screwing up to owing to set up the rubber ring between interior nut and the spigot joint, lead to the fact the part damage tightening shi buhui, make also that to connect wearing and tearing less.
Description
Technical field
The utility model relates to a kind of fuel delivery apparatus test connecting device, is specifically related to a kind of test flexible joint.
Background technique
Fuel nozzle or fuel manifold need to determine the size of flow by test on testing installation, nozzle or fuel manifold to be connected with testing installation during test, at present for the shape of nozzle or fuel manifold joint, the mode that general employing inner conical surface and outer spherical surface coordinate is connected, but because inner conical surface and male cone (strobilus masculinus) are all rigid seal linkage structures, larger torque will be applied when connecting, the small plastic deformation of link is relied on to ensure sealing, and repeatedly to load and unload jointing in experimentation, if misoperation or equipment connection joint existing defects, very easily cause workpiece damage.
Model utility content
The purpose of this utility model is for above-mentioned defect of the prior art, provides the test flexible joint that a kind of screw-down torque is little, can not cause part injury.
To achieve these goals, the technical solution adopted in the utility model is:
Comprise the inner nut and outer nut that cooperatively interact, outer nut offers shoulder hole, connect the aperture of mouth from the inside of outer nut through shoulder hole and be connected with equipment pipeline, the described mouth that connects is step hollow shaft structure, and its afterbody keeps off in the macropore of outer nut shoulder hole; Described inner nut is also arranged in the macropore of outer nut shoulder hole, and the internal thread of inner nut is connected with workpiece screw thread, workpiece by inner nut with connect mouth and engage, inner nut and connect between mouth cushion rubber is set.
Screw thread by cooperatively interacting between described inner nut and outer nut connects.
The described external diameter connecing mouth step macropore 1mm less of the internal thread path of outer nut macropore, the external diameter 1mm less of the hole diameter of outer nut of step aperture.
Described to connect mouth step macropore internal diameter equal with cushion rubber external diameter, the little 0.5mm of depth ratio cushion rubber diameter of section of step macropore.
The outer surface of described outer nut is processed with to be convenient to grip anti-skidding reticulate pattern.
Described inner nut is boss-shaped structure, comprises the thread cylinder stretched in outer nut macropore and the six side's bases kept off in outer nut macropore outside.
The internal thread of described inner nut is arranged with outside thread is concentric.
Compared with prior art, the axis hole that the utility model connects mouth is not less than the oil inlet hole of workpiece, and be connected with equipment pipeline by connecing mouth, then be connected with workpiece screw thread by the internal thread of inner nut, namely workpiece can be engaged with connecing mouth by inner nut.Conveniently, screw-down torque is little, without the need to other instruments during connection for the utility model workpiece and equipment connection, manually tighten and can meet the demands, and due to inner nut and connect between mouth and arrange cushion rubber, can not part injury be caused when tightening, also making joints wear less.
Further, the utility model meets the external diameter 1mm less of the internal thread path of outer nut macropore of mouth step macropore, the external diameter 1mm less of the hole diameter of outer nut of step aperture.Connect mouth step macropore internal diameter equal with cushion rubber external diameter, the little 0.5mm of depth ratio cushion rubber diameter of section of step macropore.The utility model compact structure, be not easy to occur rocking, functional reliability is higher.
Further, outer nut outer surface of the present utility model is processed with and grips anti-skidding reticulate pattern, is convenient to realize manual degree of tightness.
Further, inner nut of the present utility model comprises the thread cylinder stretched in outer nut macropore and the six side's bases kept off in outer nut macropore outside, easily can carry out dismounting by the spanner of correspondence.
Accompanying drawing explanation
Fig. 1 overall structure schematic diagram of the present utility model;
Fig. 2 using state schematic diagram of the present utility model;
In accompanying drawing: 1-inner nut; 2-outer nut; 3-cushion rubber; 4-connects mouth.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1,2, overall structure of the present utility model comprises inner nut 1, outer nut 2, cushion rubber 3 and connects mouth 4.
1) inner nut 1 comprises thread cylinder and six side's bases, and six side's bases are the screw-thread fit of thin-slab structure, thread cylinder and outer nut 2.There is a through tapped hole at inner nut 1 center, and concentric with outer round thread, this screw thread and workpiece screw-thread fit.
2) outer nut 2 is axle sleeve structure, and center is step hole, and connecing mouth is step hollow shaft structure, connects mouth 4 and passes from hole; The macropore of outer nut 2 is processed with screw thread, and this screw thread coordinates with the outside thread of inner nut 1; Aperture is 0.5mm with connecing the monolateral gap of mouth 4 step aperture, and the Excircle machining of outer nut 2 has online article, is convenient to grip.
3) cushion rubber 3 is GB cushion rubber, according to size and the test demand of workpiece, selects according to NBS.
4) meet the external diameter 1mm less of the internal thread path of outer nut 2 macropore of mouth 4 step macropore, the external diameter 1mm less of the hole diameter of outer nut 2 of step aperture, the aperture of step aperture should be not less than workpiece oil inlet hole aperture; Connect mouth 4 step macropore internal diameter equal with cushion rubber 3 external diameter, the little 0.5mm of depth ratio cushion rubber 3 diameter of section of step macropore.Step aperture is connected with equipment pipeline.
Before the installation of Aviation Fuel nozzle uses, or need after a procedure to check whether it still meets the technical standards, needing to detect to whether use can be continued, by needing the nozzle detected to connect on testing installation, the steps include:
1, flexible joint is assembled.
2, manual rotation outer nut 2, drives inner nut 1 and workpiece threaded engagement, to when cannot tighten, returns 1 ~ 2 circle.
3, workpiece test.
4, after testing, rotate outer nut 2 by hand, drive inner nut 1 and workpiece screw thread to depart from.
Follow-up test workpiece, only need repeat above-mentioned steps 2,3,4.
The utility model has the advantages that: workpiece and equipment connection are convenient, screw-down torque be little, when connecting without the need to instrument, only need manually to tighten, and can not cause part injury, the loss of joints wear is little.
Claims (7)
1. a test flexible joint, it is characterized in that: comprise the inner nut (1) and outer nut (2) that cooperatively interact, (2) offer shoulder hole to outer nut, connect the aperture of mouth (4) from the inside of outer nut (2) through shoulder hole to be connected with equipment pipeline, described connects mouth (4) for step hollow shaft structure, and its afterbody gear is in the macropore of outer nut (2) shoulder hole; Described inner nut (1) is also arranged in the macropore of outer nut (2) shoulder hole, and the internal thread of inner nut (1) is connected with workpiece screw thread, workpiece by inner nut (1) with connect mouth (4) and engage, inner nut (1) and connect between mouth (4) cushion rubber (3) is set.
2. test flexible joint according to claim 1, is characterized in that: connected by the screw thread cooperatively interacted between described inner nut (1) and outer nut (2).
3. test flexible joint according to claim 2, it is characterized in that: the described external diameter connecing mouth (4) step macropore 1mm less of the internal thread path of outer nut (2) macropore, the external diameter 1mm less of the hole diameter of outer nut (2) of step aperture.
4. test flexible joint according to claim 1 and 2, it is characterized in that: described to connect mouth (4) step macropore internal diameter equal with cushion rubber (3) external diameter, the little 0.5mm of depth ratio cushion rubber (3) diameter of section of step macropore.
5. test flexible joint according to claim 1 and 2, is characterized in that: the outer surface of described outer nut (2) is processed with to be convenient to grip anti-skidding reticulate pattern.
6. test flexible joint according to claim 1 and 2, it is characterized in that: described inner nut (1) is boss-shaped structure, comprise the thread cylinder stretched in outer nut (2) macropore and the six side's bases kept off in outer nut (2) macropore outside.
7. test flexible joint according to claim 1 and 2, is characterized in that: the internal thread of described inner nut (1) is arranged with outside thread is concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520811638.3U CN205136872U (en) | 2015-10-19 | 2015-10-19 | Experimental flexible joint that uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520811638.3U CN205136872U (en) | 2015-10-19 | 2015-10-19 | Experimental flexible joint that uses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136872U true CN205136872U (en) | 2016-04-06 |
Family
ID=55622665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520811638.3U Active CN205136872U (en) | 2015-10-19 | 2015-10-19 | Experimental flexible joint that uses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141752A (en) * | 2018-07-04 | 2019-01-04 | 西安航天发动机有限公司 | It is a kind of for protecting surface treatment late gate to connect the air seal test attachment device of mouth |
-
2015
- 2015-10-19 CN CN201520811638.3U patent/CN205136872U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141752A (en) * | 2018-07-04 | 2019-01-04 | 西安航天发动机有限公司 | It is a kind of for protecting surface treatment late gate to connect the air seal test attachment device of mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AECC AVIATION POWER CO,LTD. Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee before: AVIC AVIATION ENGINE Corp.,PLC |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AVIC AVIATION ENGINE Corp.,PLC Address before: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee before: XI'AN AVIATION POWER Co.,Ltd. |