CN104075683A - Wheel hop value detecting tool - Google Patents
Wheel hop value detecting tool Download PDFInfo
- Publication number
- CN104075683A CN104075683A CN201310106520.6A CN201310106520A CN104075683A CN 104075683 A CN104075683 A CN 104075683A CN 201310106520 A CN201310106520 A CN 201310106520A CN 104075683 A CN104075683 A CN 104075683A
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- wheel
- measuring instrument
- barrier part
- testing tool
- turning set
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Abstract
The invention discloses a wheel hop value detecting tool which comprises a detection instrument (3), a detection instrument installing part (2), a wheel installing shaft (4), a rotating sleeve part (5) and a conical sleeve part (6). The detection instrument installing part and the wheel installing shaft are arranged in a spaced mode. The detection instrument is arranged on the detection instrument installing part and used for detecting a wheel (100) to be detected. A sleeve body part (51) of the rotating sleeve part is coaxially installed on the wheel installing shaft in a rotating mode. The rotating sleeve part is further provided with an axial locating part (52) so that the side end of the wheel can abut against the axial locating part when the wheel is installed on the sleeve body part in a sleeved mode. The conical sleeve part can be coaxially installed on the rotating sleeve part and can move along the rotating sleeve part. The peripheral face of the conical sleeve part can form a conical peripheral face which can be partially inserted into a central hole of the wheel. The tool can measure the wheel hop value with high precision, and is simple in assembly structure and convenient to operate.
Description
Technical field
The present invention relates to vehicle testing technique field, particularly, relate to a kind of wheel hop amount testing tool.
Background technology
Wheel hop amount is an important parameter that affects wheel mass, is that reaction is beated when running car and the important performance of the steady degree of car body.At present, each automobile production enterprise is in the context of detection to wheel hop amount, and major part is not also carried out concrete norm to its special detection tool and method.And wheel supplier detects wheel jerk value performance by own checkout equipment.Current ubiquitous problem is: because the fixture of clamping wheel is undesirable, record jerk value data inaccurate, and detect same wheel, between different enterprises, testing result is also different, and artifical influence factor is larger.For example, carry out the radial and axial jerk value detection of wheel in vehicle assembling process time, conventionally after being located by its center pit, carrys out by wheel the size of measurement clearance measurement wheel hop by clearance gauge or dial gauge.The measuring error of this detection mode is large, and artifical influence factor is high, and is not easy to reading and reading is unstable.Therefore, be necessary to design a kind of special testing tool and carry out the detection of wheel hop amount, to operate simply and easily and efficiently to measure, obtain the measured value that meets degree of accuracy requirement.
Summary of the invention
The object of this invention is to provide a kind of wheel hop amount testing tool, can measure accurately wheel hop amount and assembly structure simple, convenient operation.
For achieving the above object, the invention provides a kind of wheel hop amount testing tool, this testing tool comprises measuring instrument, measuring instrument installation portion, wheel installation shaft, turning set barrier part and taper sheath barrier part; Wherein, described measuring instrument installation portion and wheel installation shaft space arrange, and described measuring instrument is arranged on described measuring instrument installation portion, for detecting the wheel to be measured being installed in described wheel installation shaft; The sleeve body portion of described turning set barrier part is coaxial and be installed in rotation in described wheel installation shaft, and on this turning set barrier part, be also provided with axial location portion, the side of this wheel to be measured can be resisted against in this axial location portion when to install in described sleeve body portion at described wheel cover to be measured; Described taper sheath barrier part can be installed to coaxially on described turning set barrier part and can move along this turning set barrier part, and the outer peripheral face of described taper sheath barrier part is formed as being partly inserted into the taper outer peripheral face in the center pit of described wheel to be measured.
Preferably, described turning set barrier part is installed in described wheel installation shaft by bearing.
Preferably, described axial location portion is the disc portion being formed on the end of described turning set barrier part, and the external diameter of this disc portion is greater than the diameter of the described center pit of described wheel.
Preferably, the outer peripheral face of the sleeve body portion of described turning set barrier part is provided with external thread, in described taper sheath barrier part, is provided with the internal thread coordinating with described external thread.
Preferably, the operating grip that extends radially outwardly out on the outer peripheral face of described taper sheath barrier part.
Preferably, the large end face diameter of described taper sheath barrier part is greater than the diameter of the described center pit of described wheel, and the small end face diameter of described taper sheath barrier part is less than the diameter of described center pit.
Preferably, described testing tool also comprises base, and one end of described measuring instrument installation portion and wheel installation shaft is fixedly installed on respectively on described base and stretches out from this base abreast respectively.
Preferably, the spacing between described measuring instrument installation portion and wheel installation shaft is greater than the radius of described wheel.
Preferably, above-mentioned measuring instrument comprises radially measuring instrument and axially measuring instrument, the measuring head of described radially measuring instrument can contact with wheel to be measured along the direction perpendicular to described wheel installation shaft under detected state, and the measuring head of described axial measuring instrument can contact with wheel to be measured along the direction that is parallel to described wheel installation shaft under detected state.
Preferably, described radially measuring instrument and axial measuring instrument are installed on described measuring instrument installation portion by measuring instrument mounting rod respectively.
Preferably, described measuring instrument mounting rod is expansion link, or described measuring instrument mounting rod installation site adjustable ground is installed on described measuring instrument installation portion.
Preferably, described in each, measuring instrument is digital display centimeter or digital display dial gauge, and described in each, measuring instrument is connected with computing machine by data line.
According to technique scheme, the center pit that wheel hop amount testing tool of the present invention passes wheel to be measured by wheel installation shaft is with assembling wheels, and assembling by turning set barrier part and taper sheath barrier part and wheel is wheel is carried out axially and radial location, makes wheel to be measured can in wheel installation shaft, not produce the stable rotation that move position.Meanwhile, measuring instrument is arranged on measuring instrument installation portion, with towards wheel installation shaft contact measured wheel surface, measures the radial and axial jerk value of wheel.Wheel hop amount testing tool of the present invention is simple in structure, and cost is low, only utilizes two parts to complete and the assembling of wheel, assembles simply and easy to operate, can efficiently and accurately detect wheel jerk value.
Other features and advantages of the present invention are described in detail the embodiment part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for instructions, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is according to the structural representation of the wheel hop amount testing tool of the preferred embodiment of the present invention.
description of reference numerals
1 base 2 measuring instrument installation portions
3 measuring instrument 4 wheel installation shaft
5 turning set barrier part 6 taper sheath barrier parts
7 bearing 8 data lines
9 measuring instrument mounting rod 10 computing machines
31 axial measuring instruments of measuring instrument 32 radially
51 52 axial location portions of sleeve body portion
61 operating grips
100 wheel 101 center pits
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
First explanation is, in the description of embodiment below, some nouns of locality that adopt for the ease of understanding, for example " on, under, left, right " etc. be to be all described according to orientation shown in the drawings, but these nouns of locality should not form limiting the scope of the invention, because the installation position of wheel hop amount testing tool in practice is varied, example testing tool as shown in Figure 1 can not adopt position as shown in Figure 1 to install according to the needs of installing space in actual installation process, but base 1 horizontal direction of this testing tool is arranged on worktable, therefore some nouns of locality of should following literary grace not using and limiting the scope of the invention.
As shown in Figure 1, the invention discloses a kind of wheel hop amount testing tool, this testing tool comprises measuring instrument 3, measuring instrument installation portion 2, wheel installation shaft 4, turning set barrier part 5 and taper sheath barrier part 6; Wherein, measuring instrument installation portion 2 arranges with wheel installation shaft 4 spaces, and measuring instrument 3 is arranged on measuring instrument installation portion 2, for detecting the wheel to be measured 100 being installed in wheel installation shaft 4; The sleeve body portion 51 of turning set barrier part 5 is coaxial and be installed in rotation in wheel installation shaft 4, and on this turning set barrier part 5, be also provided with axial location portion 52, can be resisted against in this axial location portion 52 with the side of this wheel 100 to be measured in the time that wheel 100 covers to be measured install in sleeve body portion 51; Taper sheath barrier part 6 can be installed to coaxially on turning set barrier part 5 and can move along this turning set barrier part 5, and the outer peripheral face of taper sheath barrier part 6 is formed as being partly inserted into the taper outer peripheral face in the center pit 101 of wheel 100 to be measured.As total inventive concept, the design main points of wheel hop amount testing tool of the present invention are how to assemble with wheel 100, simply and stably to realize the axial and radial location of wheel 100, and wheel 100 can be rotated and measuring instrument 3 positions are relatively fixing, thereby can stably measured wheel hop amount.Therefore, the center pit 101 that passes wheel 100 to be measured by design wheel installation shaft 4 is to assemble this wheel, and by the assembly relation between turning set barrier part 5 and taper sheath barrier part 6 and wheel 100 wheel is carried out axially and radial location, make wheel 100 to be measured can in wheel installation shaft 4, not produce the stable rotation that move position.; wheel 100 to be measured is sleeved in the sleeve body portion 51 of turning set barrier part 5 and rotates to follow turning set barrier part 5; and the axial location portion 52 on turning set barrier part 5 can be resisted against on a side, the especially peripheral side of one end of center pit 101 of wheel 100.At another side of wheel 100, partly be inserted in center pit 101 by taper sheath barrier part 6, thereby utilize the taper outer peripheral face of taper sheath barrier part 6 combined axis, to location division 52, wheel 100 is carried out to axial location, utilize the wedging between the taper outer peripheral face of taper sheath barrier part 6 and the end edge of center pit 101 to coordinate simultaneously, wheel 100 is carried out to radial location, finally make wheel 100 can stablize rotation together with turning set barrier part 5, convenient detection.On this basis, measuring instrument 3 can be arranged on measuring instrument installation portion 2, with towards wheel installation shaft 4 contact measured wheel 100 surfaces, measures the radial and axial jerk value of wheel 100.Visible, according to the principle of wheel hop amount testing tool of the present invention and simple in structure, assembly is few, makes cost low, only need utilize two parts to complete and the assembling of wheel, assembles simply and easy to operate, can efficiently and accurately detect wheel jerk value.And detecting specific purpose tool as the jerk value of wheel, its highly versatile, by regulating the spacing on measuring instrument installation portion 2 and between wheel installation shaft 4 to detect the wheel of different sizes, below will address.
After being installed on turning set barrier part 5, will rotate integratedly with turning set barrier part 5 by wheel 100 to be measured.Now, smooth and easy for making to rotate, turning set barrier part 5 is preferably installed in wheel installation shaft 4 by bearing 7.Wheel installation shaft 4 can maintain static like this, and wheel 100 and turning set barrier part 5 rotate around wheel installation shaft 4 integratedly.What certainly it may occur to persons skilled in the art that is, also comprise base 1 at testing tool as shown in Figure 1, also can make wheel 100, turning set barrier part 5 and wheel installation shaft 4 unitary rotation, wheel installation shaft 4 is installed on base 1 by bearing 7, but this mode stressing conditions is relatively undesirable, wheel installation shaft 4 easily produces flexural deformation.In addition, also comprise base 1 at testing tool as shown in Figure 1, one end of measuring instrument installation portion 2 and wheel installation shaft 4 can be fixedly installed on respectively on base 1 and stretch out from this base 1 abreast respectively, and measuring instrument installation portion 2 and wheel installation shaft 4 can be structure as a whole with base 1.Wheel installation shaft 4 is preferably level and stretches out, and 2 of measuring instrument installation portions can approximate horizontal stretch out or tilt all can a little.
Referring to Fig. 1, axial location portion 52 is wherein preferably the disc portion on the end that is formed on turning set barrier part 5, and the external diameter of this disc portion is designed to the diameter of the center pit 101 that is greater than wheel 100.Thereby after wheel 100 covers to be measured are installed on rotational sleeve part 5, the plane of the ring center pit 101 of the right-hand end of the wheel 100 in Fig. 1 can be resisted against in this disc portion, to wheel 100 stop bit to the right.The card of disc portion can be tight with the plane laminating of ring center pit 101, and lifting surface area is large, locates more reliable and more stable.
Wherein, taper sheath barrier part 6 should be able to partly be inserted in center pit 101, thereby its size should meet: the large end face diameter of taper sheath barrier part 6 is greater than the diameter of the center pit 101 of wheel 100, and the small end face diameter of taper sheath barrier part 6 is less than the diameter of center pit 101.And, for making taper sheath barrier part 6 to move to insert in the center pit 101 of wheel 100 at turning set barrier part 5, thereby the opposite side at wheel 100 carries out axial location, between the two, can form the mode such as be slidably matched, but preferably adopt the mode being threaded, the outer peripheral face that is the sleeve body portion 51 of turning set barrier part 5 is provided with external thread, is provided with the internal thread coordinating with external thread in taper sheath barrier part 6.Like this, taper sheath barrier part 6 can insert in center pit 101 by screw thread turn mode, and between taper sheath barrier part 6 and wheel 100, is forming after tight assembling, and the auto-lock function by screw thread is by these taper sheath barrier part 6 lock in place.Further, for ease of operation, the operating grip 61 that can extend radially outwardly out on the outer peripheral face of taper sheath barrier part 6, thus can be by this handle 61 of manual control so that taper sheath barrier part 6 be tightened onto in center pit 101.
By above structure and mode, wheel 100 is being installed behind location, can utilized measuring instrument 3 to carry out relevant wheel hop amount and detect.Measuring instrument 3 is installed on measuring instrument installation portion 2, wheel 100 is installed in wheel installation shaft 4, therefore for ease of installation and the detection of measuring instrument 3, especially in the time that the outward flange of measuring head contact wheel 100 detects, the spacing between measuring instrument installation portion 2 and wheel installation shaft 4 should be greater than the radius of wheel 100.
In addition in the time that wheel hop amount detects, should be able to detect radial beat eccentricity and axial runout amount, therefore the measuring instrument 3 in Fig. 1 at least comprises radially measuring instrument 31 and axially measuring instrument 32, radially the measuring head of measuring instrument 31 can contact with wheel 100 to be measured along the direction perpendicular to wheel installation shaft 4 under detected state, and axially the measuring head of measuring instrument 32 can contact with wheel 100 to be measured along the direction that is parallel to wheel installation shaft 4 under detected state.As shown in Figure 1, the measuring head of measuring instrument 3 can be contacted with wheel downside placenta, wheel rim respectively, be depressed into 2～3mm with instrument measurement head and be advisable, then uniform rotation wheel 100.Wherein, for ease of installing, radially measuring instrument 31 and axial measuring instrument 32 are preferably respectively and are installed on measuring instrument installation portion 2 by measuring instrument mounting rod 9.Regulate for ease of the spacing between measuring instrument 3 and wheel 100, measuring instrument mounting rod 9 can be that expansion link or measuring instrument mounting rod 9 installation site adjustable grounds are installed on measuring instrument installation portion 2.
Each measuring instrument 3 is preferably digital display centimeter or digital display dial gauge so that reading and instant playback, in the time of uniform rotation wheel 100, each measuring instrument 3 is connected with computing machine 10 by data line 8, thereby wheel hop detection values is transported to computing machine 10 in real time, to analyze or to carry out data storing, be convenient to follow-up across comparison analysis etc.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. a wheel hop amount testing tool, is characterized in that, this testing tool comprises measuring instrument (3), measuring instrument installation portion (2), wheel installation shaft (4), turning set barrier part (5) and taper sheath barrier part (6);
Wherein, described measuring instrument installation portion (2) arranges with wheel installation shaft (4) space, it is upper that described measuring instrument (3) is arranged on described measuring instrument installation portion (2), for detecting the wheel to be measured (100) being installed in described wheel installation shaft (4);
The sleeve body portion (51) of described turning set barrier part (5) is coaxial and be installed in rotation in described wheel installation shaft (4), and on this turning set barrier part (5), be also provided with axial location portion (52), can be resisted against in this axial location portion (52) with the side of this wheel to be measured (100) in the time that described wheel to be measured (100) cover installs in described sleeve body portion (51);
Described taper sheath barrier part (6) can be installed to coaxially described turning set barrier part (5) above and can be mobile along this turning set barrier part (5), and the outer peripheral face of described taper sheath barrier part (6) is formed as being partly inserted into the interior taper outer peripheral face of center pit (101) of described wheel to be measured (100).
2. wheel hop amount testing tool according to claim 1, is characterized in that, described turning set barrier part (5) is installed in described wheel installation shaft (4) by bearing (7).
3. wheel hop amount testing tool according to claim 1, it is characterized in that, described axial location portion (52) is for being formed on the disc portion on the end of described turning set barrier part (5), and the external diameter of this disc portion is greater than the diameter of the described center pit (101) of described wheel (100).
4. wheel hop amount testing tool according to claim 1, it is characterized in that, the outer peripheral face of the sleeve body portion (51) of described turning set barrier part (5) is provided with external thread, in described taper sheath barrier part (6), is provided with the internal thread coordinating with described external thread.
5. wheel hop amount testing tool according to claim 1, is characterized in that, operating grip (61) extends radially outwardly out on the outer peripheral face of described taper sheath barrier part (6).
6. wheel hop amount testing tool according to claim 1, it is characterized in that, the large end face diameter of described taper sheath barrier part (6) is greater than the diameter of the described center pit (101) of described wheel (100), and the small end face diameter of described taper sheath barrier part (6) is less than the diameter of described center pit (101).
7. wheel hop amount testing tool according to claim 1, it is characterized in that, described testing tool also comprises base (1), and one end of described measuring instrument installation portion (2) and wheel installation shaft (4) is fixedly installed on respectively described base (1) and goes up and distinguish abreast and stretch out from this base (1).
8. wheel hop amount testing tool according to claim 7, is characterized in that, the spacing between described measuring instrument installation portion (2) and wheel installation shaft (4) is greater than the radius of described wheel (100).
9. according to the wheel hop amount testing tool described in any one in claim 1-8, it is characterized in that, described measuring instrument (3) comprises radially measuring instrument (31) and axially measuring instrument (32), the measuring head of described radially measuring instrument (31) can contact with wheel to be measured (100) along the direction perpendicular to described wheel installation shaft (4) under detected state, and the measuring head of described axial measuring instrument (32) can contact with wheel to be measured (100) along the direction that is parallel to described wheel installation shaft (4) under detected state.
10. wheel hop amount testing tool according to claim 9, is characterized in that, described radially measuring instrument (31) and axially measuring instrument (32) are installed on described measuring instrument installation portion (2) by measuring instrument mounting rod (9) respectively.
11. wheel hop amount testing tools according to claim 10, it is characterized in that, described measuring instrument mounting rod (9) is expansion link, or described measuring instrument mounting rod (9) installation site adjustable ground is installed on described measuring instrument installation portion (2).
12. wheel hop amount testing tools according to claim 9, is characterized in that, measuring instrument described in each (3) is digital display centimeter or digital display dial gauge, and described in each, measuring instrument (3) is connected with computing machine (10) by data line (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106520.6A CN104075683B (en) | 2013-03-29 | 2013-03-29 | Wheel hop amount detects instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106520.6A CN104075683B (en) | 2013-03-29 | 2013-03-29 | Wheel hop amount detects instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104075683A true CN104075683A (en) | 2014-10-01 |
| CN104075683B CN104075683B (en) | 2017-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310106520.6A Expired - Fee Related CN104075683B (en) | 2013-03-29 | 2013-03-29 | Wheel hop amount detects instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN104075683B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266675A (en) * | 2014-10-25 | 2015-01-07 | 马钢(集团)控股有限公司 | Detection device for wheel |
| CN105115422A (en) * | 2015-08-18 | 2015-12-02 | 浙江欧星环美汽车部件有限公司 | Noncontact wheel multifunctional detection system |
| CN110044238A (en) * | 2019-05-23 | 2019-07-23 | 洛阳普瑞森精密轴承有限公司 | A kind of crossed roller bearing clearance measuring apparatus |
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| US20040045177A1 (en) * | 2002-08-22 | 2004-03-11 | Hiroyuki Kobayashi | Method of improving RRO of wheel rim |
| JP2011067896A (en) * | 2009-09-25 | 2011-04-07 | Railway Technical Res Inst | Chucking device of wheel lathe for railway vehicle |
| CN201945929U (en) * | 2011-01-26 | 2011-08-24 | 联想(北京)有限公司 | Hard disk mounting rack and computer comprising same |
| CN102466439A (en) * | 2010-11-10 | 2012-05-23 | 江苏凯特汽车部件有限公司 | Composite detection apparatus used by aluminium alloy wheel of automobile |
| CN202420458U (en) * | 2012-02-27 | 2012-09-05 | 中信戴卡轮毂制造股份有限公司 | Wheel radial-positioning device |
| CN202442665U (en) * | 2012-03-01 | 2012-09-19 | 中信戴卡轮毂制造股份有限公司 | Wheel jumping detecting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201945299U (en) * | 2010-12-30 | 2011-08-24 | 洛阳轴研科技股份有限公司 | Abrasion wheel circular runout gauge |
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2013
- 2013-03-29 CN CN201310106520.6A patent/CN104075683B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040045177A1 (en) * | 2002-08-22 | 2004-03-11 | Hiroyuki Kobayashi | Method of improving RRO of wheel rim |
| JP2011067896A (en) * | 2009-09-25 | 2011-04-07 | Railway Technical Res Inst | Chucking device of wheel lathe for railway vehicle |
| CN102466439A (en) * | 2010-11-10 | 2012-05-23 | 江苏凯特汽车部件有限公司 | Composite detection apparatus used by aluminium alloy wheel of automobile |
| CN201945929U (en) * | 2011-01-26 | 2011-08-24 | 联想(北京)有限公司 | Hard disk mounting rack and computer comprising same |
| CN202420458U (en) * | 2012-02-27 | 2012-09-05 | 中信戴卡轮毂制造股份有限公司 | Wheel radial-positioning device |
| CN202442665U (en) * | 2012-03-01 | 2012-09-19 | 中信戴卡轮毂制造股份有限公司 | Wheel jumping detecting device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266675A (en) * | 2014-10-25 | 2015-01-07 | 马钢(集团)控股有限公司 | Detection device for wheel |
| CN105115422A (en) * | 2015-08-18 | 2015-12-02 | 浙江欧星环美汽车部件有限公司 | Noncontact wheel multifunctional detection system |
| CN105115422B (en) * | 2015-08-18 | 2018-02-23 | 浙江欧星环美汽车部件有限公司 | Non-contact wheel multifunctional examining examining system |
| CN110044238A (en) * | 2019-05-23 | 2019-07-23 | 洛阳普瑞森精密轴承有限公司 | A kind of crossed roller bearing clearance measuring apparatus |
| CN110044238B (en) * | 2019-05-23 | 2023-12-01 | 洛阳普瑞森精密轴承有限公司 | Cross roller bearing play measuring instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104075683B (en) | 2017-03-15 |
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Granted publication date: 20170315 Termination date: 20180329 |