CN106437766A - Concrete pump with fence of hopper driven by cam to rotate - Google Patents
Concrete pump with fence of hopper driven by cam to rotate Download PDFInfo
- Publication number
- CN106437766A CN106437766A CN201610934702.6A CN201610934702A CN106437766A CN 106437766 A CN106437766 A CN 106437766A CN 201610934702 A CN201610934702 A CN 201610934702A CN 106437766 A CN106437766 A CN 106437766A
- Authority
- CN
- China
- Prior art keywords
- fence
- guide post
- cam
- concrete
- hopper
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Paleontology (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a concrete pump with a fence of a hopper driven by a cam to rotate. The problem of concrete accumulation is completely solved. The concrete pump comprises a concrete stirring device, the hopper, the fence and a vibration device, wherein the vibration device comprises a vibration shaft, guide rods, a bottom plate and the cam; a plurality of guide rod through holes are formed in the bottom plate; the vibration shaft is positioned at a central part between the multiple guide rod through holes; the cam is fixedly connected with a stirring shaft of the concrete stirring device; the guide rods are arranged in each guide rod through hole in the bottom plate in a sliding fit manner respectively; the lower extending end of each guide rod is sleeved with a lower compression spring, and the lower ends of the lower compression springs are axially positioned by limiting nuts; the upper extending end of each guide rod is sleeved with an upper compression spring, and the upper ends of the upper compression springs are axially limited by limiting lug bosses; the upper ends of the guide rods are fixedly connected with a mounting plate; a connecting plate is erected on one side of the mounting plate, and is fixed on the hopper; a yielding through hole through which the vibration shaft penetrates and extends is formed in the mounting plate; the fence is mounted at the upper end of the vibration shaft.
Description
Technical field
The present invention relates to concreting machinery field, more particularly to a kind of concrete of cam driven hopper fence vibration
Pump.
Background technology
Concrete pump is a kind of efficient concrete conveyer, is widely used in skyscraper, colliery, mine, tunnel
The concrete workses such as road, railway, highway, bridges and culverts, harbour, water conservancy, electric power, defence engineering.It passes through pipeline by concrete continuous
It is sent to cast scene, there is preferable maneuverability.
Concrete pump, in pump concrete, needs dumping into concrete pump hopper of concrete conveyance tank car continuation
Concrete, for preventing big material from entering material bin and job safety, typically can design cell structure formula at the upper surface of hopper
Fence, its Main Function is to prevent the excessive material in concrete mortar from entering in material bin, is also a kind of security protection simultaneously
Device, plays certain safeguard protection effect.But the setting of fence limits concrete to a certain extent enters in material bin
Speed, easily makes concrete be deposited on fence, causes concrete to overflow, the transfer efficiency of impact concrete.
Domestic at present conventional solution is that operator pushes concrete with instruments such as spades at any time, so that concrete is dissipated
Open and go forward side by side in material bin.Obviously, this working method not only increases the workload of operator, and inefficiency, also
Leave hidden danger to the personal safety of workman, be unfavorable for keeping the safety in production.
Therefore, the companies such as external some concrete pump manufacturers such as CIFA, arrange vibrating motor on hopper fence
Realize fence vibration.Setting vibration source (as vibrating motor etc.) specifically on fence, by direct on hopper fence
The mode of setting vibration source (as vibrating motor) drives fence to vibrate.This fence mode of vibration improves operating efficiency, reduces
Potential safety hazard, but due to need extra on concrete pump increase vibration source and appurtenances that some must increase, lead
The cost causing concrete pump increases, and is unfavorable for marketing；And the working environment of concrete pump is more severe, the vibration newly increasing
Source increased equipment fault point to a certain extent, and its reliability reduces；In addition, hopper fence upper space is limited, to coagulation
The design of native pump brings difficulty；Also add concrete pump cleaning simultaneously and safeguard inconvenient, and then increased concrete pump
Maintenance cost.Therefore, above-mentioned shortcomings all lead to domestic concrete pump manufacturer not adopt this mechanism, still edge
Worked with the mode of original artificial exclusion concrete, waste time and energy, inefficiency.
The concrete pump of Patent No. ZL201010127030.0 is shaken by cam driven fence, however, this vibrations
For rigid vibrations, the impact to concrete pump, hopper, fence is all very big, can substantially reduce concrete pump, hopper, fence
Service life, and, the frequency of this vibrations is relatively low, and concrete is piled up problem and still thoroughly do not solved.
Content of the invention
Present invention aims to the deficiencies in the prior art, provide a kind of coagulation of cam driven hopper fence vibration
Native pump, its vibrations are flexible shock, to concrete pump, hopper, fence impact all very little it is ensured that concrete pump, material
Bucket, the service life of fence, and, the frequency that it shakes is very high, has and thoroughly solves concrete accumulation problem, makes concrete
Can rapidly enter in hopper, realize the smooth pumping of concrete, so that the operating efficiency of concrete pump is improved, reliability is carried
High.
The object of the present invention is achieved like this：
A kind of concrete pump of cam driven hopper fence vibration, including concrete central mix plant, hopper and located at described
Fence in hopper, and for driving the vibrating device of described fence, described vibrating device includes vibrating shaft, guide post, bottom
Plate, cam, described base plate is provided with multiple guide post vias, and described vibrating shaft is located at the central part between multiple guide post vias
Position, and be vertically fixed on base plate, described cam is fixedly connected with the shaft of described concrete central mix plant, when cam rotation
When, have spacing distance between the miner diameter end of cam and the lower end of vibrating shaft, the bigger diameter end of described cam can with vibrating shaft under
End in contact, each guide post on described base plate is crossed in the hole and is sliding combined with guide post respectively, and the lower elongated end of each guide post is respectively
It is cased with lower compression spring, the upper end of lower compression spring is limited in base plate, lower compression lower spring end stop nut axially position, respectively
The upper elongated end of guide post is cased with compression spring respectively, and the lower end of upper compression spring is limited in base plate, upper compression spring upper
Hold the positive stop lug boss axial limiting being provided with by the upper elongated end of guide post, the upper end of each guide post passes through nut and an installation respectively
Plate is fixedly connected, and the side of described installing plate is equipped with connecting plate, and described connecting plate is fixed on hopper, and described installing plate sets
There is resigning via to pass through for vibrating shaft to stretch out, described fence is installed in the upper end of described vibrating shaft.
Preferably, it is equipped with T-shaped bushing in each guide post via on described base plate, each guide post is joined with T-shaped casing slip
Close, the lower end of T-shaped bushing is to lower compression spring retainer.
Preferably, it is respectively equipped with limiting gasket between described each lower compression spring and corresponding stop nut, each spacing
Packing ring is respectively fitted on corresponding guide post.
Preferably, the both sides of described fence are provided with connection wall, and described connection wall upwardly extends discharge bucket, then stretch out one
Section is fixedly connected with vibrating shaft.
Concrete in order to adjust fence passes through gap, and the concrete adapting to pumping all size is it is preferred that described fence
Including fence frame, hinged some blades between the crossbeam of described fence frame, each blade is parallel to each other, the left crossbeam of described fence frame
Outside is provided with fixed beam, forms installing space between described fixed beam and left crossbeam, and the rotating shaft of described each blade passes through left crossbeam
Stretch in installing space and fixedly mount gear, the gear of described each blade is linked together by a cingulum, described fixation
One latch is inserted on beam, it is corresponding with latch that described gear is provided with some jacks, described latch and each jack cooperation, for positioning
The rotational angle of blade.
In order to reduce paddle stirring resistance it is preferred that described concrete central mix plant shaft on circumferentially fixed
There are some paddles, between adjacent paddle, sliding spring is set, under normality, sliding spring is in compressive state, when resistance mistake
When big, blade moves axially automatically on shaft, and the abrasion of paddle is less, and service life is longer.
In the course of work, in rotary course, its bigger diameter end continues percussion vibration axle to cam, and upper and lower compression spring is repeatedly
Elongation, contraction, make vibrating shaft with respect to installing plate vertical tremor, and then realize fence high-frequency vibration.
It is respectively equipped with T-shaped bushing between base plate and each clamping device guide post, prevent base plate and each clamping device guide post
Contact, produces abrasion.The miner diameter end of T-shaped bushing inserts the guide post via interior axle positioning that base plate is provided with, its bigger diameter end with
Compression spring contacts, and forms axially position and the clamping of T-shaped bushing, and T-shaped bushing is to be detachably connected, and is conveniently replaceable, will not grind
Damage base plate and clamping device guide post, reduce production cost.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of fence；
Fig. 3 is the scheme of installation of paddle.
In accompanying drawing, 1 is vibrating shaft, and 2 is guide post, and 3 is base plate, and 31b is guide post via, and 4 is cam, and 5 is fence, 6
For lower compression spring, 7 is upper compression spring, and 8 is stop nut, and 9 is positive stop lug boss, and 10 is installing plate, and 10b is resigning via,
11 is shaft, and 12 is T-shaped bushing, and 13 is limiting gasket, and 14 is connecting plate, and 15 is hopper, and 101 is fence frame, and 102 is horizontal stroke
Beam, 103 is blade, and 104 is fixed beam, and 105 is gear, and 106 is cingulum, and 107 is latch, and 108 is paddle, and 109 is sliding
Spring.
Specific embodiment
Referring to Fig. 1 to Fig. 3, it is a kind of concrete pump of cam driven hopper fence vibration, a kind of cam driven hopper grid
The concrete pump of hurdle vibration, including concrete central mix plant, hopper and the fence in described hopper, and is used for driving institute
State the vibrating device of fence, described vibrating device includes vibrating shaft 1, guide post 2, base plate 3, cam 4, described base plate 3 is provided with
Multiple guide post via 31b, described vibrating shaft 1 is located at the centre between multiple guide post via 31b, and is vertically fixed on
On base plate 3, described cam 4 is fixedly connected with the shaft 11 of described concrete central mix plant, when cam 4 rotates, cam 4
Have spacing distance between the lower end of miner diameter end and vibrating shaft 1, the bigger diameter end of described cam 4 can with the lower end in contact of vibrating shaft 1,
It is sliding combined with guide post 2 respectively, the lower elongated end of each guide post 2 covers respectively in each guide post via 31b on described base plate 3
There is lower compression spring 6, the upper end of lower compression spring 6 is limited in base plate 3, lower compression spring 6 lower end is axially fixed with stop nut 8
Position, the upper elongated end of each guide post 2 is cased with compression spring 7 respectively, and the lower end of upper compression spring 7 is limited in base plate, upper compression
Positive stop lug boss 9 axial limiting that the upper end of spring 7 is provided with by the upper elongated end of guide post 2, the upper end of each guide post 2 is passed through respectively
Nut is fixedly connected with an installing plate 10, and the side of described installing plate 10 is equipped with connecting plate 14, and described connecting plate 14 is fixed on
On hopper 15, described installing plate 10 is provided with resigning via 10b and passes through for vibrating shaft and stretches out, and institute is installed in the upper end of described vibrating shaft
State fence 5.
It is equipped with T-shaped bushing 12, each guide post 2 is slided with T-shaped bushing 12 in each guide post via 31b on described base plate 3
Cooperation, the lower end of T-shaped bushing 12 is spacing to lower compression spring 6.
It is respectively equipped with limiting gasket 13, each limiting gasket between described each lower compression spring 6 and corresponding stop nut 8
13 are respectively fitted on corresponding guide post 2.
The both sides of described fence 5 are provided with connection wall, and described connection wall upwardly extends discharge bucket 15, then stretch out one section with
The impact bar 1a of vibrating shaft 1 is fixedly connected.
Described fence includes fence frame, hinged some blades between the crossbeam of described fence frame, and each blade is parallel to each other, institute
The left cross rail outer stating fence frame is provided with fixed beam, forms installing space, described each blade between described fixed beam and left crossbeam
Rotating shaft stretch in installing space through left crossbeam and fixedly mount gear, the gear of described each blade passes through a cingulum and connects
Together, described fixed beam is inserted a latch, it is corresponding with latch that described gear is provided with some jacks, described latch is inserted with each
Hole coordinates, for the rotational angle of locating blades.
On the shaft of described concrete central mix plant, circumference is fixed with some paddles, and setting between adjacent paddle is slided
Move spring, under normality, sliding spring is in compressive state, when resistance is excessive, blade moves axially automatically on shaft, stirs
The abrasion mixing leaf is less, and service life is longer.
Finally illustrate, preferred embodiment above only in order to technical scheme to be described and unrestricted, although logical
Cross above preferred embodiment the present invention to be described in detail, it is to be understood by those skilled in the art that can be
In form and various changes are made to it, without departing from claims of the present invention limited range in details.
Claims (6)
1. the concrete pump of a kind of cam driven hopper fence vibration, including concrete central mix plant, hopper and located at described material
Fence in bucket, and for drive described fence vibrating device it is characterised in that：Described vibrating device includes vibrating shaft
(1), guide post (2), base plate (3), cam (4), described base plate (3) is provided with multiple guide post vias (31b), described vibrating shaft
(1) be located at the centre between multiple guide post vias (31b), and be vertically fixed on base plate (3), described cam (4) with
The shaft (11) of described concrete central mix plant is fixedly connected, when cam (4) rotates, the miner diameter end of cam (4) and vibration
There is spacing distance, the bigger diameter end of described cam (4) can be with the lower end in contact of vibrating shaft (1), described bottom between the lower end of axle (1)
It is sliding combined with guide post (2) respectively, the lower elongated end of each guide post (2) is respectively in each guide post via (31b) on plate (3)
It is cased with lower compression spring (6), the upper end of lower compression spring (6) is limited in base plate (3), the spacing spiral shell in lower compression spring (6) lower end
Female (8) axially position, the upper elongated end of each guide post (2) is cased with compression spring (7), the lower end of upper compression spring (7) respectively
It is limited in base plate, positive stop lug boss (9) axial limiting that the upper end of upper compression spring (7) is provided with by the upper elongated end of guide post (2),
The upper end of each guide post (2) is fixedly connected with an installing plate (10) by nut respectively, and the side of described installing plate (10) erects
There is connecting plate (14), described connecting plate (14) is fixed on hopper (15), and described installing plate (10) is provided with resigning via (10b)
Pass through for vibrating shaft and stretch out, described fence (5) is installed in the upper end of described vibrating shaft.
2. cam driven hopper fence according to claim 1 vibration concrete pump it is characterised in that：Described base plate
(3) it is equipped with T-shaped bushing (12) in upper each guide post via (31b), each guide post (2) and T-shaped bushing (12) are slidably matched, T
The lower end of type bushing (12) is spacing to lower compression spring (6).
3. cam driven hopper fence according to claim 1 vibration concrete pump it is characterised in that：Described respectively push
It is respectively equipped with limiting gasket (13), each limiting gasket (13) is respectively fitted between contracting spring (6) and corresponding stop nut (8)
On corresponding guide post (2).
4. cam driven hopper fence according to claim 1 vibration concrete pump it is characterised in that：Described fence
(5) both sides are provided with connection wall, and described connection wall upwardly extends discharge bucket (15), then stretch out one section with vibrating shaft (1)
Impact bar (1a) is fixedly connected.
5. cam driven hopper fence according to claim 1 vibration concrete pump it is characterised in that：Described fence bag
Include fence frame, hinged some blades between the crossbeam of described fence frame, each blade is parallel to each other, outside the left crossbeam of described fence frame
Side is provided with fixed beam, forms installing space between described fixed beam and left crossbeam, and the rotating shaft of described each blade is stretched through left crossbeam
Enter in installing space and fixedly mount gear, the gear of described each blade is linked together by a cingulum, described fixed beam
Upper insertion one latch, it is correspondings with latch that described gear is provided with some jacks, and described latch and each jack coordinate, for positioning leaf
The rotational angle of piece.
6. cam driven hopper fence according to claim 1 vibration concrete pump it is characterised in that：Described concrete
On the shaft of agitating device, circumference is fixed with some paddles, arranges sliding spring, under normality, sliding between adjacent paddle
Spring is in compressive state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610934702.6A CN106437766A (en) | 2016-11-01 | 2016-11-01 | Concrete pump with fence of hopper driven by cam to rotate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610934702.6A CN106437766A (en) | 2016-11-01 | 2016-11-01 | Concrete pump with fence of hopper driven by cam to rotate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106437766A true CN106437766A (en) | 2017-02-22 |
Family
ID=58177758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610934702.6A Pending CN106437766A (en) | 2016-11-01 | 2016-11-01 | Concrete pump with fence of hopper driven by cam to rotate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106437766A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2389731Y (en) * | 1999-07-23 | 2000-08-02 | 张伟华 | Automatic vibration compound sieve |
| US6817242B1 (en) * | 2003-11-07 | 2004-11-16 | Stephen M. Moran | Concrete level indicator |
| CN200958345Y (en) * | 2006-09-22 | 2007-10-10 | 陈金福 | Rack and gear light-adjusting scuttle |
| CN201454453U (en) * | 2009-07-21 | 2010-05-12 | 刘运武 | Filtering crushed material stirring machine |
| CN102192122A (en) * | 2010-03-04 | 2011-09-21 | 徐工集团工程机械股份有限公司建设机械分公司 | Concrete pump |
| CN202706573U (en) * | 2012-08-20 | 2013-01-30 | 中联重科股份有限公司 | Hopper and screening frame of thereof and concrete pumping device |
| CN103949874A (en) * | 2014-05-08 | 2014-07-30 | 重庆理工大学 | Transition fit connection vibration-assembling device for products |
| CN204346167U (en) * | 2014-12-18 | 2015-05-20 | 重庆金九建材集团有限公司 | The instrument of laying bricks of cement kiln refractory brick |
| CN206111209U (en) * | 2016-11-01 | 2017-04-19 | 重庆华耀混凝土有限公司 | Cam drives concrete pump of hopper fence vibration |
-
2016
- 2016-11-01 CN CN201610934702.6A patent/CN106437766A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2389731Y (en) * | 1999-07-23 | 2000-08-02 | 张伟华 | Automatic vibration compound sieve |
| US6817242B1 (en) * | 2003-11-07 | 2004-11-16 | Stephen M. Moran | Concrete level indicator |
| CN200958345Y (en) * | 2006-09-22 | 2007-10-10 | 陈金福 | Rack and gear light-adjusting scuttle |
| CN201454453U (en) * | 2009-07-21 | 2010-05-12 | 刘运武 | Filtering crushed material stirring machine |
| CN102192122A (en) * | 2010-03-04 | 2011-09-21 | 徐工集团工程机械股份有限公司建设机械分公司 | Concrete pump |
| CN202706573U (en) * | 2012-08-20 | 2013-01-30 | 中联重科股份有限公司 | Hopper and screening frame of thereof and concrete pumping device |
| CN103949874A (en) * | 2014-05-08 | 2014-07-30 | 重庆理工大学 | Transition fit connection vibration-assembling device for products |
| CN204346167U (en) * | 2014-12-18 | 2015-05-20 | 重庆金九建材集团有限公司 | The instrument of laying bricks of cement kiln refractory brick |
| CN206111209U (en) * | 2016-11-01 | 2017-04-19 | 重庆华耀混凝土有限公司 | Cam drives concrete pump of hopper fence vibration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102192122B (en) | Concrete pump | |
| CN201650645U (en) | Concrete pump | |
| CN207238078U (en) | Construction waste extruding crushes reducing mechanism again | |
| CN107901237A (en) | A kind of good concrete central mix plant of mixing effect | |
| CN104265167A (en) | Transshipment anchor rod and anchor cable drill carriage | |
| CN206111208U (en) | Crank drives concrete pump of hopper fence vibration | |
| CN204152434U (en) | A kind of transhipment anchor shaft anchor cable six arm drill carriage | |
| CN106401608A (en) | Concrete pump capable of driving hopper and fence to vibrate by using crank | |
| CN106640128A (en) | Concrete pump achieving effect that cams drive hopper and fence to vibrate | |
| CN206111209U (en) | Cam drives concrete pump of hopper fence vibration | |
| CN206376874U (en) | Concrete pump with oscillatory type hopper fence | |
| CN206129295U (en) | Cam drives concrete pump of hopper fence vibration | |
| CN106437768A (en) | Concrete pump with vibration of hopper fence driven by cam | |
| CN106640127A (en) | Concrete pump with vibration type hopper fence | |
| CN106437766A (en) | Concrete pump with fence of hopper driven by cam to rotate | |
| CN206376875U (en) | Concrete pump with oscillatory type hopper fence | |
| CN206233933U (en) | The concrete pump of cam driven hopper fence vibration | |
| CN110258704B (en) | Application method of mobile river sludge dredging device | |
| CN104353522A (en) | Vertical mill machine | |
| CN204152431U (en) | A kind of transhipment anchor shaft anchor cable eight arm drill carriage | |
| CN208136917U (en) | Concrete pump with lift hopper fence | |
| CN216879644U (en) | Regenerated aggregate treatment device suitable for solidified soil | |
| CN216778926U (en) | Concrete processing conveying device with crushing mechanism | |
| CN206397511U (en) | Concrete pump with oscillatory type hopper fence | |
| CN106481348A (en) | Concrete pump with oscillatory type hopper fence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |