CN104690173A - Rivetless connection device for inner and outer cylinders of valve - Google Patents
Rivetless connection device for inner and outer cylinders of valve Download PDFInfo
- Publication number
- CN104690173A CN104690173A CN201410710120.0A CN201410710120A CN104690173A CN 104690173 A CN104690173 A CN 104690173A CN 201410710120 A CN201410710120 A CN 201410710120A CN 104690173 A CN104690173 A CN 104690173A
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- China
- Prior art keywords
- limit seat
- valve
- valve body
- round platform
- connection device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a rivetless connection device for inner and outer cylinders of a valve. The device comprises a left limiting seat, a sleeve, punches, resetting plate springs, a right limiting seat, a support seat and a rib plate, wherein a working oil cavity, punch holes and plate spring holes are formed in the left limiting seat, and the left limiting seat is connected with the support seat through screws; the right limiting seat is propped against one end of each of the inner and outer cylinders of the valve and connected with the left limiting seat through screws; a circular step surface a and a circular step surface c clamp an inner cylinder of the valve, and a circular step surface and a circular step surface d clamp an outer cylinder of the valve; the outer cylinder of the valve is sleeved with the sleeve; the punches are clamped in the punch holes through the resetting plate springs, are extruded under the action of high-pressure hydraulic oil, have yield deformation in the position of the contact point of the punches and the inner cylinder of the valve and have plastic deformation after contacted with the outer cylinder of the valve, so that the inner cylinder and the outer cylinder are connected and fixed. The rivetless connection device for the inner and outer cylinders of the valve is simple in structure, doesn't produce heat, has low impact and can guarantee performance of materials in the combination position, and the problem that the valve performance is influenced due to riveting or welding of the inner and outer cylinders of the valve can be effectively solved.
Description
Technical field
The present invention relates to a kind of jockey of valve body, especially a kind of valve body inner/outer tube is without being riveting connection device.
Background technology
Tradition plate connects the general method adopting spot welding or riveted joint, but when applying to the connection of valve body inner/outer tube, because sleeve spacing is little, also there are some defects technically.Small-sized inner/outer tube connects when adopting spot welding, and mash welder is difficult to or cannot carries out connection at all, and costly, efficiency is low, thermal deformation also can affect the intensity at tie point place.Conventional rivet connection needs extra connector, and costly, riveted joint place surface quality is poor, has had a strong impact on the performance of oil excessively between inner/outer tube.Without being riveting, connection technology does not need extra connector, without the need to pre-punched hole, and not disfiguring workpiece surface, has traditional spot welding and the incomparable advantage of riveted joint.
To so far, can provide and mainly contain without being riveting the device connect: CN102416424A discloses one without mould without riveting connection device, different force value can be set according to the thickness being connected sheet material, do not need die, therefore the centering of drift and die is not needed, make device structure simple, low cost of manufacture; CN2838806Y discloses a kind of grinding forming without rivet mechanism, and riveted joint apparent mass is good, and riveting intensity is high, and join domain does not have thermal stress, can not the protective layer of disfiguring workpiece.These devices respectively have advantage, to some extent solve in esse problem.But investigation finds, these are without being riveting connection device complex structure, only can the plate of processing plane, and the processing be not suitable between inside and outside cylinder connects, and this is the weak point existing for prior art.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, there is provided that a kind of structure is simple, reliable operation, do not produce heat, percussion few, ensure junction material property, effectively can solve the riveted joint of valve body inner/outer tube or welding to a kind of valve body inner/outer tube of valve performance impact without being riveting connection device.
In order to solve above technical problem, the invention provides a kind of valve body inner/outer tube without being riveting connection device, comprising left limit seat, sleeve, right limit seat; The inside of described left limit seat is provided with working oil chamber, several bore of the punch, drift is provided with in described bore of the punch, described drift is embedded in described bore of the punch, described left limit seat is provided with round platform terrace a and round platform terrace b, described right limit seat is provided with round platform terrace c and round platform terrace d, described round platform terrace a is concordant with described round platform terrace c, described round platform terrace b is concordant with described round platform terrace d, described left limit seat is fixed on the left end of described sleeve by the first screw, described right limit seat passes through the second screw in compression on described left limit seat.
Further, described drift is provided with the first leaf spring hole, and described left limit seat is provided with the second leaf spring hole, is installed with restoration spring in described first leaf spring hole and described second leaf spring hole.
Further, also comprise bearing and gusset, described bearing is fixed on the left end of described sleeve, and described gusset is fixed on the corner of described bearing.
Further, drift, restoration spring, bore of the punch, the first leaf spring hole and the second leaf spring hole have 4 respectively, prolong circumference and are uniformly distributed.
Further, described punch tip is taper shape, curved, triangle.
Further, described bearing is connected by 4 screws with left limit seat.
Further, the right-hand member of described left limit seat is provided with spacing block set, and the left end of described right limit seat is provided with concave station, and described second screw fixes described spacing block set through concave station.Bolt and left limit seat is made to have longer fastening distance.
The invention has the beneficial effects as follows:
A kind of valve body inner/outer tube in the present invention is as follows compared to prior art advantage without being riveting connection device:
(1) connection device structure is simple, volume is little, lightweight, operation and maintenance cost is low without being riveting for the inner/outer tube in the present invention, is applied to small-sized, slim valve body inner/outer tube and connects that to add man-hour simple to operate, can not increase the triviality of operation;
(2) the use hydraulic driving mode of the invention, the control to working oil chamber hydraulic fluid pressure size can be realized accurately, gradually load time can guarantee drift extruding inner core to outer barrel surface and yield deformation link together, control the unlikely inner/outer tube excessive deformation of maximum load to damage, thus make valve body inner/outer tube be in best connection status;
(3) the drift impulse stroke in the present invention is short, rubs little in the course of work, long service life, utilizing the restoration spring in the present invention to get final product self-resetting, not needing extra driving mechanism, thus reducing installation cost when resetting;
(4) 4 drift circumferences in the present invention are uniformly distributed, and 4 junctions all limit the relative play of valve body inner/outer tube from axial and circumferential, ensure that valve body inner/outer tube one-off single step forming, do not need repeated removal device, substantially increase working (machining) efficiency;
(5) a, b, c and d round platform terrace in the present invention, for limiting the position of valve body inner/outer tube, make it can not axial float, ensure that the position of junction can not offset, machining accuracy be improved.
Accompanying drawing explanation
Fig. 1 is that a kind of valve body inner/outer tube of the embodiment of the present invention is without the structural representation being riveting connection device;
Fig. 2 is the partial enlarged drawing of part A in Fig. 1;
Fig. 3 is that valve body inner/outer tube meets processing effect figure without being riveting;
In figure: 1-left limit seat, 2-sleeve, 3-valve body urceolus, 4-valve body inner core, 5-drift, 6-restoration spring, 7-right limit seat, 8-second screw, 9-bearing, 10-gusset, 11-first screw, 12-working oil chamber, 13-bore of the punch, 14-first leaf spring hole, 15-second leaf spring hole, 16-spacing block set, 17-round platform terrace a, 18-round platform terrace b, 19-round platform terrace c, 20-round platform terrace d.
Detailed description of the invention
A kind of valve body inner/outer tube that the present embodiment provides without being riveting connection device,
There is working oil chamber 12 left limit seat inside, bore of the punch 13 and the second leaf spring hole 15, left limit seat there is round platform terrace a and b, near right limit seat 7 one end centre be extended with spacing spacing block set 16 carried out to right limit seat 7, there is the first leaf spring hole on drift 5 top, drift 5 is embedded in the bore of the punch 13 on left limit seat 1, restoration spring 6 is stuck in the second leaf spring hole 15 on left limit seat 1 and the first leaf spring hole 14 on drift simultaneously, right limit seat 7 there is round platform terrace c19 and round platform terrace d20, through hole is had for being connected with the screw of left limit seat 1 in the middle of right limit seat 7, sleeve 2 and valve body urceolus 3 matched in clearance, shield, gusset 10 is welded on bearing 9, strengthen bearing intensity,
The technical scheme that the present invention limits further is:
Aforesaid a kind of valve body inner/outer tube without being riveting in connection device, a round platform terrace of left limit seat and the c round platform terrace of right limit seat spacing to valve body inner core, the b round platform terrace of left limit seat and the d round platform terrace of right limit seat spacing to valve body urceolus;
Aforesaid a kind of valve body inner/outer tube is without being riveting in connection device, and drift, restoration spring, bore of the punch, the first leaf spring hole 14 and the second leaf spring hole 15 have 4 respectively, prolong circumference and are uniformly distributed;
Aforesaid a kind of valve body inner/outer tube is without being riveting in connection device, punch tip is the shape and structures such as taper shape, curved, triangle, can require to select different punch shape according to difference, lower end diameter is identical with the diameter of bore of the punch, both interference fit, radical length is identical with bore of the punch, and drift can radially slide in bore of the punch;
Aforesaid a kind of valve body inner/outer tube is without being riveting in connection device, and bore of the punch and the second leaf spring hole vertical distribution are in the same side of working oil chamber;
Aforesaid a kind of valve body inner/outer tube is without being riveting in connection device, and bearing is connected by 4 screws with left limit seat;
Embodiment 1:
Structure as depicted in figs. 1 and 2, comprises the left limit seat 1 being provided with inner chamber, the drift 5 being arranged on left limit seat 1 inside and restoration spring 6, is arranged on the right limit seat 7 of left limit seat 1 near drift 5 side, is arranged on the sleeve 2 of left limit seat 1 and right limit seat 7 periphery and supports bearing 9 and the gusset 10 of whole device;
There is working oil chamber 12 left limit seat 1 inside, bore of the punch 13 and the second leaf spring hole 15, left limit seat 1 there is round platform terrace a17 and b18, near right limit seat 7 one end centre be extended with spacing spacing block set 16 carried out to right limit seat 7, there is the first leaf spring hole 14 on drift 5 top, drift 5 is embedded in the bore of the punch 13 on left limit seat 1, restoration spring 6 be stuck in simultaneously on left limit seat 1 the second leaf spring hole 15 and drift 5 on the first leaf spring hole 14 in, right limit seat 7 there is round platform terrace c19 and d20, through hole is had for being connected with the second screw 8 of left limit seat 1 in the middle of right limit seat 7, sleeve 2 and valve body urceolus 3 matched in clearance, gusset 10 is welded on bearing 9, strengthen bearing 9 intensity, the round platform terrace a17 of left limit the seat 1 and round platform terrace c19 of right limit seat 7 is spacing to valve body inner core 4, and faced by the round platform terrace b18 of left limit the seat 1 and round platform terrace d20 of right limit seat 7, valve body urceolus 3 is spacing, drift 5, restoration spring 6, bore of the punch 13, first leaf spring hole 14 and the second leaf spring hole 15 have 4 respectively, prolong circumference and are uniformly distributed, drift 5 top is conical, and lower end diameter is identical with the diameter of bore of the punch 13, and radical length is identical with bore of the punch 13, and drift 5 can radially slide in bore of the punch 13, bore of the punch 13 and the second leaf spring hole 15 vertical distribution are in the same side of working oil chamber 12, bearing 9 is connected by 4 screws with left limit seat 1,
During concrete enforcement:
During original state, the hydraulic oil in working oil chamber 12 is in unloading condition, does not substantially have pressure.Drift 5, under the effect of restoration spring 6, is in reset mode.
When needs processing work, first valve body inner core 4 is installed, then valve body urceolus 3 is installed, connect right limit seat 7 and left limit seat 1 with the second screw 8, finally overlap upper bush 2.Pass to high pressure liquid force feed to working oil chamber 12, drift 5 extrudes and is out of shape with valve body inner core 4 contact point place under the effect of high pressure liquid force feed.When valve body inner core 4 touches valve body urceolus 3 surface, hydraulic oil continues pressurization, ensures that the external cylinder 3 of valve body inner core 4 squeezing valve is out of shape, and forms a pit, thus valve body inner/outer tube is linked together on valve body urceolus 3 surface.4 drifts 5 work simultaneously, and valve body inner/outer tube produces yield deformation 4 positions, firmly links together.
After machining, first the unloading of the hydraulic oil of working oil chamber 12, drift 5 sets back under the effect of restoration spring 6, then unloads lower sleeve 2 and right limit seat 7, finally the valve body inner/outer tube connected is taken off together.
Apparatus of the present invention are applied to small-sized, slim valve body inner/outer tube to connect without being riveting, structure is simple, reliable operation, do not produce heat, percussion few, ensure junction material property, effectively can solve the riveted joint of valve body inner/outer tube or weld the problem brought, the premium properties of better maintaining valve.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (7)
1. valve body inner/outer tube is without being riveting a connection device, it is characterized in that, comprises left limit seat (1), sleeve (2), right limit seat (7), the inside of described left limit seat (1) is provided with working oil chamber (12), several bore of the punch (13), drift (5) is provided with in described bore of the punch (13), described drift (5) is embedded in described bore of the punch (13), described left limit seat (1) is provided with round platform terrace a (17) and round platform terrace b (18), described right limit seat (7) is provided with round platform terrace c (19) and round platform terrace d (20), described round platform terrace a (17) is concordant with described round platform terrace c (19), described round platform terrace b (18) is concordant with described round platform terrace d (20), described left limit seat (1) is fixed on the left end of described sleeve (2) by the first screw (11), described right limit seat (7) is pressed on described left limit seat (1) by the second screw (8).
2. a kind of valve body inner/outer tube according to claim 1 is without being riveting connection device, it is characterized in that, described drift (5) is provided with the first leaf spring hole (14), described left limit seat is provided with the second leaf spring hole (15), is installed with restoration spring (6) in described first leaf spring hole (14) and described second leaf spring hole (15).
3. a kind of valve body inner/outer tube according to claim 1 is without being riveting connection device, it is characterized in that, also comprise bearing (9) and gusset (10), described bearing (9) is fixed on the left end of described sleeve, and described gusset (10) is fixed on the corner of described bearing (9).
4. a kind of valve body according to claim 1 is inside and outside without riveting set, it is characterized in that, drift (5), restoration spring (6), bore of the punch (13), the first leaf spring hole (14) and the second leaf spring hole (15) have 4 respectively, prolong circumference and are uniformly distributed.
5. a kind of valve body inner/outer tube according to claim 1 is without being riveting connection device, it is characterized in that, described drift (5) top is taper shape, curved, triangle.
6. a kind of valve body inner/outer tube according to claim 1 is without being riveting connection device, it is characterized in that: described bearing (9) is connected by 4 screws (11) with left limit seat (1).
7. a kind of valve body inner/outer tube according to claim 1 is without being riveting connection device, it is characterized in that, the right-hand member of described left limit seat (1) is provided with spacing block set (16), the left end of described right limit seat is provided with concave station, and described second screw (8) fixes described spacing block set (16) through concave station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710120.0A CN104690173B (en) | 2014-11-28 | 2014-11-28 | A kind of valve body inner/outer tube is without riveting attachment means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710120.0A CN104690173B (en) | 2014-11-28 | 2014-11-28 | A kind of valve body inner/outer tube is without riveting attachment means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104690173A true CN104690173A (en) | 2015-06-10 |
| CN104690173B CN104690173B (en) | 2017-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410710120.0A Expired - Fee Related CN104690173B (en) | 2014-11-28 | 2014-11-28 | A kind of valve body inner/outer tube is without riveting attachment means |
Country Status (1)
| Country | Link |
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| CN (1) | CN104690173B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5646452B2 (en) * | 1978-03-13 | 1981-11-04 | ||
| CN2316064Y (en) * | 1996-07-26 | 1999-04-28 | 江苏石油化工学院 | Hydraulic expansion-jointing equipment |
| CN2449836Y (en) * | 2000-10-10 | 2001-09-26 | 华东理工大学 | Device for mfg. lining composite tube by hydraulic expansion |
| CN101844183A (en) * | 2009-03-23 | 2010-09-29 | 上海华谊集团装备工程有限公司 | Expanded joint process for middle tube plate far from tube end and tube |
| CN101947603A (en) * | 2010-09-27 | 2011-01-19 | 浙江金洲管道科技股份有限公司 | Elastic internal expansion tube expander |
| CN204449048U (en) * | 2014-11-28 | 2015-07-08 | 江苏大学 | A kind of valve body inner/outer tube is without being riveting connection device |
-
2014
- 2014-11-28 CN CN201410710120.0A patent/CN104690173B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5646452B2 (en) * | 1978-03-13 | 1981-11-04 | ||
| CN2316064Y (en) * | 1996-07-26 | 1999-04-28 | 江苏石油化工学院 | Hydraulic expansion-jointing equipment |
| CN2449836Y (en) * | 2000-10-10 | 2001-09-26 | 华东理工大学 | Device for mfg. lining composite tube by hydraulic expansion |
| CN101844183A (en) * | 2009-03-23 | 2010-09-29 | 上海华谊集团装备工程有限公司 | Expanded joint process for middle tube plate far from tube end and tube |
| CN101947603A (en) * | 2010-09-27 | 2011-01-19 | 浙江金洲管道科技股份有限公司 | Elastic internal expansion tube expander |
| CN204449048U (en) * | 2014-11-28 | 2015-07-08 | 江苏大学 | A kind of valve body inner/outer tube is without being riveting connection device |
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| Publication number | Publication date |
|---|---|
| CN104690173B (en) | 2017-12-22 |
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Granted publication date: 20171222 Termination date: 20191128 |