CN105065390A - Seamless inner diameter tensioning connecting device for steel tubes - Google Patents
Seamless inner diameter tensioning connecting device for steel tubes Download PDFInfo
- Publication number
- CN105065390A CN105065390A CN201510429320.3A CN201510429320A CN105065390A CN 105065390 A CN105065390 A CN 105065390A CN 201510429320 A CN201510429320 A CN 201510429320A CN 105065390 A CN105065390 A CN 105065390A
- Authority
- CN
- China
- Prior art keywords
- tensioning sleeve
- steel pipe
- tensioning
- conical surface
- sleeve
- Prior art date
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 103
- 239000010959 steel Substances 0.000 title claims abstract description 103
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 4
- 230000008719 thickening Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/02—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a seamless inner diameter tensioning connecting device for steel tubes. The seamless inner diameter tensioning connecting device comprises the left steel tube and the right steel tube and is characterized in that a left outer tensioning sleeve and a left inner tensioning sleeve are arranged on the left steel tube; a right outer tensioning sleeve and a right inner tensioning sleeve are arranged on the right steel tube; a connecting lead screw is arranged between the left outer tensioning sleeve and the left inner tensioning sleeve. A left connecting column and a right connecting column on the connecting lead screw are in threaded connection with the left inner tensioning sleeve and the right inner tensioning sleeve respectively, so that workers only need to drive the connecting lead screw to rotate through a mechanical wrench, and the left steel tube and the right steel tube can be in cooperation; therefore, short joints of traditional specifications can be connected into a steel tube which exceeds 5 m and can be directly thickened in this way, the problems of a traditional production line are solved, and work efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of steel tube seamless internal diameter tensioning coupling arrangement, particularly relate to a kind of steel tube seamless internal diameter tensioning coupling arrangement that directly can carry out thickening process.
Background technique
The requirement that 100 traditional at present steel pipes use to meet high strength occasion, need to carry out thickening process, thickening production line production specification scope is: Φ 48.3 ~ 114.3*3.68 ~ 6.88*5000 ~ 10400mm, and the steel pipe of the following length of existing production line 5m can not directly thicken, but present situation is current pipe nipple has an appointment 1.5m, 3m, 4.5m length etc., so not only during feeding and discharging, steel pipe cannot pass through, and Medium Frequency Induction Heating Furnace cannot be inputted and jumping-up press operates on it, need to carry out auxiliary operation by other equipment, just greatly have impact on working efficiency and production capacity thus.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of steel tube seamless internal diameter tensioning coupling arrangement, has the advantages that can directly carry out thickening process.
For solving the problems of the technologies described above, technological scheme of the present invention is: a kind of steel tube seamless internal diameter tensioning coupling arrangement, comprise the right steel pipe of the horizontally disposed left steel pipe of central axis and central axis and described left steel pipe central axes, its innovative point is: described left steel pipe is provided with the left outside tensioning sleeve be embedded in described left steel pipe on the left steel pipe right-hand member of described right steel pipe, the left inside tensioning sleeve be connected in this left outside tensioning sleeve, the face that described left outside tensioning sleeve contacts with described left inside tensioning sleeve is the first conical surface, the face that described left inside tensioning sleeve contacts with described left outside tensioning sleeve is the second conical surface, the tapering of described second conical surface is consistent with the tapering of described first conical surface, described left outside tensioning sleeve is provided with the first screw be connected on described left inside tensioning sleeve, described left inside tensioning sleeve is provided with the first through hole that left and right is through, described right steel pipe is provided with the right outside tensioning sleeve be embedded in described right steel pipe on the right steel pipe left end of described left steel pipe, the right inside tensioning sleeve be connected in this right outside tensioning sleeve, the face that described right outside tensioning sleeve contacts with described right inside tensioning sleeve is the 3rd conical surface, the face that described right inside tensioning sleeve contacts with described right outside tensioning sleeve is the 4th conical surface, the tapering of described 4th conical surface is consistent with the tapering of described 3rd conical surface, described right outside tensioning sleeve is provided with the second screw be connected on described right inside tensioning sleeve, described right inside tensioning sleeve is provided with the second through hole that left and right is through, to be arranged between described left outside tensioning sleeve and described left inside tensioning sleeve and central axis and described left steel pipe central axes connect screw mandrel, described connection screw mandrel is provided with the left attachment post of screw-thread fit in described first through hole, described connection screw mandrel is provided with the right attachment post of screw-thread fit in described second through hole, described left attachment post and described right attachment post are structure as a whole with the described screw mandrel that connects.
Preferably, the diameter of described connection screw mandrel equals the external diameter of described left steel pipe.
Preferably, described screw-thread fit is that trapezoidal thread coordinates.
Preferably, described left inside tensioning sleeve is provided with the first flange that diameter equals described left outer diameter of steel pipes on one end of described right steel pipe, and described first flange and described left inside tensioning sleeve are structure as a whole.
Preferably, described first flange is at least provided with the first mounting hole that described first screw of confession passes.
Preferably, described right inside tensioning sleeve is provided with the second flange that diameter equals described right outer diameter of steel pipes on one end of described left steel pipe, and described second flange and described right inside tensioning sleeve are structure as a whole.
Preferably, described second flange is at least provided with the second mounting hole that described second screw of confession passes.
Preferably, described left outside tensioning sleeve and described right outside tensioning sleeve are semi-closed structure.
Preferably, the tapering of described first conical surface and the tapering of described 3rd conical surface are 10 ~ 12 °.
Preferably, the tapering of described first conical surface and the tapering of described 3rd conical surface are 11 °.
The invention has the advantages that: be threaded with left inside tensioning sleeve and right inside tensioning sleeve respectively by the left attachment post on connection leading screw and right attachment post, and left inside tensioning sleeve and right inside tensioning sleeve are connected with left outside tensioning sleeve and the right outside tensioning sleeve conical surface respectively owing to being cone match, thus by the first screw and the second screw, left outside tensioning sleeve and right outside tensioning sleeve and left inside tensioning sleeve and right inside tensioning sleeve are well combined together, left outside tensioning sleeve and right outside tensioning sleeve are interference fitted on left steel pipe and right steel pipe respectively simultaneously, as long as staff utilizes mechanical wrench to drive connect screw mandrel rotation, the cooperation of left steel pipe and right steel pipe can be realized, thus the pipe nipple of traditional specification can be adopted above-mentioned mode to be connected to become the steel pipe that can directly thicken more than more than 5 meters, thus avoid the problem of conventional production lines, substantially increase working efficiency.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of a kind of steel tube seamless internal diameter of the present invention tensioning coupling arrangement;
Fig. 2 is the structural representation connecting screw mandrel in a kind of steel tube seamless internal diameter of the present invention tensioning coupling arrangement;
Fig. 3 is the structural representation of left inside tensioning sleeve in a kind of steel tube seamless of the present invention internal diameter tensioning coupling arrangement;
Fig. 4 is the right elevation of Fig. 3;
Fig. 5 is the structural representation of left outside tensioning sleeve in a kind of steel tube seamless of the present invention internal diameter tensioning coupling arrangement;
Fig. 6 is the right elevation of Fig. 5;
Fig. 7 is the structural representation of right inside tensioning sleeve in a kind of steel tube seamless of the present invention internal diameter tensioning coupling arrangement;
Fig. 8 is the right elevation of Fig. 7;
Fig. 9 is the structural representation of right outside tensioning sleeve in a kind of steel tube seamless of the present invention internal diameter tensioning coupling arrangement;
Figure 10 is the right elevation of Fig. 9;
In figure: the left steel pipe of 1-, the right steel pipe of 2-, the left outside tensioning sleeve of 3-, 31-first conical surface, 32-first screw, the left inside tensioning sleeve of 4-, 41-second conical surface, 42-first through hole, 43-first flange, 44-first mounting hole, the right outside tensioning sleeve of 5-, 51-the 3rd conical surface, 52-second screw, the right inside tensioning sleeve of 6-, 61-the 4th conical surface, 62-second through hole, 63-second flange, 64-second mounting hole, 7-connect screw mandrel, the left attachment post of 71-, the right attachment post of 72-.
Embodiment
Steel tube seamless internal diameter tensioning coupling arrangement of the present invention, comprises the right steel pipe 2 of the horizontally disposed left steel pipe 1 of central axis and central axis and described left steel pipe 1 central axes.Wherein, described left steel pipe 1 is provided with the left outside tensioning sleeve 3 be embedded in described left steel pipe 1 on left steel pipe 1 right-hand member of described right steel pipe 2, the left inside tensioning sleeve 4 be connected in this left outside tensioning sleeve 3, the face that described left outside tensioning sleeve 3 contacts with described left inside tensioning sleeve 4 is the first conical surface 31, the face that described left inside tensioning sleeve 4 contacts with described left outside tensioning sleeve 3 is the second conical surface 41, the tapering of described second conical surface 41 is consistent with the tapering of described first conical surface 31, described left outside tensioning sleeve 3 is provided with the first screw 32 be connected on described left inside tensioning sleeve 4, described left inside tensioning sleeve 4 is provided with the first through hole 42 that left and right is through.
Described right steel pipe 2 is provided with the right outside tensioning sleeve 5 be embedded in described right steel pipe 2 on right steel pipe 2 left end of described left steel pipe 1, the right inside tensioning sleeve 6 be connected in this right outside tensioning sleeve 5, the face that described right outside tensioning sleeve 5 contacts with described right inside tensioning sleeve 6 is the 3rd conical surface 51, the face that described right inside tensioning sleeve 6 contacts with described right outside tensioning sleeve 5 is the 4th conical surface 61, the tapering of described 4th conical surface 61 is consistent with the tapering of described 3rd conical surface 51, described right outside tensioning sleeve 5 is provided with the second screw 52 be connected on described right inside tensioning sleeve 6, described right inside tensioning sleeve 6 is provided with the second through hole 62 that left and right is through.
To be arranged between described left outside tensioning sleeve 3 and described left inside tensioning sleeve 4 and central axis and described left steel pipe 1 central axes connect screw mandrel 7, described connection screw mandrel 7 is provided with the left attachment post 71 of screw-thread fit in described first through hole 42, described connection screw mandrel 7 is provided with the right attachment post 72 of screw-thread fit in described second through hole 62, described left attachment post 71 and described right attachment post 72 are structure as a whole with the described screw mandrel 7 that connects.
Drive connection screw mandrel 7 to rotate for the ease of the later stage by hydraulic spanner, the diameter connecting screw mandrel 7 equals the external diameter of described left steel pipe 1.In order to ensure to connect the join strength of left attachment post 71 on screw mandrel 7 and right attachment post 72, screw-thread fit is that trapezoidal thread coordinates.
In order to realize the axial limiting of left inside tensioning sleeve 4 at left steel pipe 1, left inside tensioning sleeve 4 is provided with the first flange 43 that diameter equals described left steel pipe 1 external diameter on one end of described right steel pipe 2, and described first flange 43 is structure as a whole with described left inside tensioning sleeve 4.Easy to operate for the ease of operator, the first flange 43 is at least provided with the first mounting hole 44 that described first screw 32 of confession passes.In order to realize the axial limiting of right inside tensioning sleeve 6 at right steel pipe 2, right inside tensioning sleeve 6 is provided with the second flange 63 that diameter equals described right steel pipe 2 external diameter on one end of described left steel pipe 1, and described second flange 63 is structure as a whole with described right inside tensioning sleeve 6.Easy to operate for the ease of operator, described second flange 63 is at least provided with the second mounting hole 64 that described second screw 52 of confession passes.
In order to the user demand making left outside tensioning sleeve 3 and described right outside tensioning sleeve 5 meet the aperture of different size, left outside tensioning sleeve 3 and described right outside tensioning sleeve 5 are semi-closed structure.
In order to ensure to coordinate intensity and fiting effect, the tapering of the first conical surface 31 and the tapering of described 3rd conical surface 51 are 10 ~ 12 °, and reach best when the tapering of the first conical surface 31 and the tapering of described 3rd conical surface 51 are 11 ° in theory.
Be threaded with left inside tensioning sleeve 4 and right inside tensioning sleeve 6 respectively by the left attachment post 71 on connection leading screw and right attachment post 72, and left inside tensioning sleeve 4 and right inside tensioning sleeve 6 are connected with left outside tensioning sleeve 3 and right outside tensioning sleeve 5 conical surface respectively owing to being cone match, thus by the first screw 32 and the second screw 52, left outside tensioning sleeve 3 and right outside tensioning sleeve 5 are well combined together with left inside tensioning sleeve 4 and right inside tensioning sleeve 6, left outside tensioning sleeve 3 and right outside tensioning sleeve 5 are interference fitted on left steel pipe 1 and right steel pipe 2 respectively simultaneously, as long as staff utilizes mechanical wrench to drive connection screw mandrel 7 to rotate, the cooperation of left steel pipe 1 and right steel pipe 2 can be realized, thus the pipe nipple of traditional specification can be adopted above-mentioned mode to be connected to become the steel pipe that can directly thicken more than more than 5 meters, thus avoid the problem of conventional production lines, substantially increase working efficiency.
Rotated by hydraulic spanner and connect screw mandrel 7, screwed in the first through hole 42 and the second through hole 62 by left attachment post 71 and right attachment post 72 upper trapezoid screw thread correspondence, realize drawing close of left steel pipe 1 and right steel pipe 2.Left inside tensioning sleeve 4 and left outside tensioning sleeve 3, fastening by tight for 11 ° of conical surface laminatings by the first screw 32, thus increase left outside tensioning sleeve 3 external diameter and compress left steel pipe 1 inwall, thus do not need welding, the steel pipe after connecting will be caused cannot to pass through on roller-way because outside connects.In like manner, left inside tensioning sleeve 4 and left outside tensioning sleeve 3 also like this.Can significantly shorten the connection time by this device, and can reuse, cost is low, is convenient to relatively large exploitation pipe nipple pipe and thickeies order.
Finally it should be noted that, above embodiment is only in order to illustrate technological scheme of the present invention and non-limiting technological scheme, those of ordinary skill in the art is to be understood that, those are modified to technological scheme of the present invention or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a steel tube seamless internal diameter tensioning coupling arrangement, comprise the right steel pipe of the horizontally disposed left steel pipe of central axis and central axis and described left steel pipe central axes, it is characterized in that: described left steel pipe is provided with the left outside tensioning sleeve be embedded in described left steel pipe on the left steel pipe right-hand member of described right steel pipe, the left inside tensioning sleeve be connected in this left outside tensioning sleeve, the face that described left outside tensioning sleeve contacts with described left inside tensioning sleeve is the first conical surface, the face that described left inside tensioning sleeve contacts with described left outside tensioning sleeve is the second conical surface, the tapering of described second conical surface is consistent with the tapering of described first conical surface, described left outside tensioning sleeve is provided with the first screw be connected on described left inside tensioning sleeve, described left inside tensioning sleeve is provided with the first through hole that left and right is through, described right steel pipe is provided with the right outside tensioning sleeve be embedded in described right steel pipe on the right steel pipe left end of described left steel pipe, the right inside tensioning sleeve be connected in this right outside tensioning sleeve, the face that described right outside tensioning sleeve contacts with described right inside tensioning sleeve is the 3rd conical surface, the face that described right inside tensioning sleeve contacts with described right outside tensioning sleeve is the 4th conical surface, the tapering of described 4th conical surface is consistent with the tapering of described 3rd conical surface, described right outside tensioning sleeve is provided with the second screw be connected on described right inside tensioning sleeve, described right inside tensioning sleeve is provided with the second through hole that left and right is through, to be arranged between described left outside tensioning sleeve and described left inside tensioning sleeve and central axis and described left steel pipe central axes connect screw mandrel, described connection screw mandrel is provided with the left attachment post of screw-thread fit in described first through hole, described connection screw mandrel is provided with the right attachment post of screw-thread fit in described second through hole, described left attachment post and described right attachment post are structure as a whole with the described screw mandrel that connects.
2. a kind of steel tube seamless internal diameter tensioning coupling arrangement as claimed in claim 1, is characterized in that: the diameter of described connection screw mandrel equals the external diameter of described left steel pipe.
3. a kind of steel tube seamless internal diameter tensioning coupling arrangement as claimed in claim 1, is characterized in that: described screw-thread fit is that trapezoidal thread coordinates.
4. a kind of steel tube seamless internal diameter tensioning coupling arrangement as claimed in claim 1, it is characterized in that: described left inside tensioning sleeve is provided with the first flange that diameter equals described left outer diameter of steel pipes on one end of described right steel pipe, and described first flange and described left inside tensioning sleeve are structure as a whole.
5. a kind of steel tube seamless internal diameter tensioning coupling arrangement as claimed in claim 4, is characterized in that: described first flange is at least provided with the first mounting hole that described first screw of confession passes.
6. a kind of steel tube seamless internal diameter tensioning coupling arrangement as claimed in claim 1, it is characterized in that: described right inside tensioning sleeve is provided with the second flange that diameter equals described right outer diameter of steel pipes on one end of described left steel pipe, and described second flange and described right inside tensioning sleeve are structure as a whole.
7. a kind of steel tube seamless internal diameter tensioning coupling arrangement as claimed in claim 6, is characterized in that: described second flange is at least provided with the second mounting hole that described second screw of confession passes.
8. a kind of steel tube seamless internal diameter tensioning coupling arrangement as claimed in claim 1, is characterized in that: described left outside tensioning sleeve and described right outside tensioning sleeve are semi-closed structure.
9. a kind of steel tube seamless internal diameter tensioning coupling arrangement as claimed in claim 1, is characterized in that: the tapering of described first conical surface and the tapering of described 3rd conical surface are 10 ~ 12 °.
10. a kind of steel tube seamless internal diameter tensioning coupling arrangement as claimed in claim 1, is characterized in that: the tapering of described first conical surface and the tapering of described 3rd conical surface are 11 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510429320.3A CN105065390A (en) | 2015-07-21 | 2015-07-21 | Seamless inner diameter tensioning connecting device for steel tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510429320.3A CN105065390A (en) | 2015-07-21 | 2015-07-21 | Seamless inner diameter tensioning connecting device for steel tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105065390A true CN105065390A (en) | 2015-11-18 |
Family
ID=54494861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510429320.3A Pending CN105065390A (en) | 2015-07-21 | 2015-07-21 | Seamless inner diameter tensioning connecting device for steel tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105065390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131187A (en) * | 2017-06-26 | 2017-09-05 | 河北工业大学 | A kind of pipe connecting device |
| CN112378358A (en) * | 2020-11-20 | 2021-02-19 | 爱佩仪测量设备有限公司 | Upright column seamless splicing structure and method for three-coordinate measuring machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9109480D0 (en) * | 1991-05-02 | 1991-06-26 | Hui Lin M | A wedge-chuck connector for steel bar splice |
| WO1993000516A1 (en) * | 1991-06-28 | 1993-01-07 | Weland Ab | Tube connector |
| CN2727477Y (en) * | 2004-09-22 | 2005-09-21 | 黄晖 | Pipe coupler |
| CN201517537U (en) * | 2009-09-15 | 2010-06-30 | 苏州迈科凯恩家具制造有限公司 | Pipe connector |
| CN204921580U (en) * | 2015-07-21 | 2015-12-30 | 江苏华菱锡钢特钢有限公司 | Internal diameter tensioning coupling device that steel pipe is seamless |
-
2015
- 2015-07-21 CN CN201510429320.3A patent/CN105065390A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9109480D0 (en) * | 1991-05-02 | 1991-06-26 | Hui Lin M | A wedge-chuck connector for steel bar splice |
| WO1993000516A1 (en) * | 1991-06-28 | 1993-01-07 | Weland Ab | Tube connector |
| CN2727477Y (en) * | 2004-09-22 | 2005-09-21 | 黄晖 | Pipe coupler |
| CN201517537U (en) * | 2009-09-15 | 2010-06-30 | 苏州迈科凯恩家具制造有限公司 | Pipe connector |
| CN204921580U (en) * | 2015-07-21 | 2015-12-30 | 江苏华菱锡钢特钢有限公司 | Internal diameter tensioning coupling device that steel pipe is seamless |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131187A (en) * | 2017-06-26 | 2017-09-05 | 河北工业大学 | A kind of pipe connecting device |
| CN112378358A (en) * | 2020-11-20 | 2021-02-19 | 爱佩仪测量设备有限公司 | Upright column seamless splicing structure and method for three-coordinate measuring machine |
| CN112378358B (en) * | 2020-11-20 | 2022-03-25 | 爱佩仪测量设备有限公司 | Upright column seamless splicing structure and method for three-coordinate measuring machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20151118 |