CN103662869A - Rotating-unloading-type air-lock controllable unloading machine - Google Patents
Rotating-unloading-type air-lock controllable unloading machine Download PDFInfo
- Publication number
- CN103662869A CN103662869A CN201310650982.4A CN201310650982A CN103662869A CN 103662869 A CN103662869 A CN 103662869A CN 201310650982 A CN201310650982 A CN 201310650982A CN 103662869 A CN103662869 A CN 103662869A
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- sprocket wheel
- sub
- casing
- unloading
- push pedal
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- 239000000463 material Substances 0.000 claims abstract description 82
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 25
- 241000883990 Flabellum Species 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 5
- 238000010408 sweeping Methods 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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- Ship Loading And Unloading (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a material separation loading and unloading device, and particularly relates to a rotating-unloading-type air-lock controllable unloading machine which can effectively and accurately achieve and control material separation and unloading states. The rotating-unloading-type air-lock controllable unloading machine comprises a separation mechanism, an unloading mechanism and a power mechanism. The separation mechanism comprises a separation box and a pushing device; a feeding port is formed in the top of one side of the separation box, and a discharging port is formed in the bottom of the other side of the separation box; the pushing device comprises a front push plate, a push rod, a connecting rod, an eccentric wheel, a crankshaft and a first chain wheel, wherein the front push plate, the push rod, the connecting rod, the eccentric wheel, the crankshaft and the first chain wheel are mutually connected, and rollers are arranged at the two ends of the back side of the front push plate. The unloading mechanism comprises an unloading box, a second chain wheel, a main shaft and impeller blades, wherein a receiving port is formed in the top of the unloading box, an outlet is formed in the bottom of the unloading box, the receiving port is connected to the bottom of the discharging port, the second chain wheel is fixed to the end of the main shaft and is in transmission connection with the power mechanism, and the impeller blades are symmetrically and fixedly arranged on the main shaft.
Description
Technical field
The present invention relates to material packing device for discharging technical field, particularly relate to the controlled unloader of a kind of rotation unloading type lock gas.
Background technology
As everyone knows, in the process of manufacture of powder dreg type material, conventionally need to will after material dosing packing, can be transported to organisation of working or package mechanism, and the sub-material discharge process of automation is the difficult problem in automated production always; The coal sub-material discharge process of take in coal digging industry is example, coal powder is placed in hopper conventionally, the bottom of hopper is connected with slat conveyer, in prior art, normally directly utilize the gravity of coal powder, by controlling the size of hopper blanking port, realize quantitative sub-material discharging to slat conveyer, in this mode, the discharge rate of material and sub-material precision are subject to many-sided impact such as stock, material powder diameter, material humidity in hopper, are difficult to realize the sub-material state of accurate control material.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of controlled unloader of rotation unloading type lock gas that can effectively accurately realize and control the sub-material discharging state of material.
The controlled unloader of rotation unloading type lock gas of the present invention, comprises feeding distribution mechanism, shedding mechanism and actuating unit;
Described feeding distribution mechanism comprises sub-material casing and material-pulling device, described sub-material casing one side roof part is provided with feeding mouth, described sub-material casing opposite side bottom is provided with blanking port, described material-pulling device comprises front push pedal, push rod, connecting rod, eccentric wheel, crank shaft and the first sprocket wheel, described the first sprocket wheel and described actuating unit are in transmission connection, described the first sprocket wheel is connected with described eccentric wheel coaxial rotation by described crank shaft, one end of described connecting rod is connected to the eccentric position on described eccentric wheel by rotating shaft, one end of described push rod is connected with the other end of described connecting rod by rotating shaft, and the other end of described push rod is fixed on the rear side of described front push pedal, the rear side two ends of described front push pedal are also provided with roller, described push rod moves reciprocatingly in described sub-material casing between described blanking port rear and described feeding mouth bottom,
Described shedding mechanism comprises discharging casing, the second sprocket wheel, main shaft and impeller flabellum, the top of described discharging casing is provided with material receiving port, the bottom of described discharging casing is provided with discharging opening, described material receiving port is connected to the bottom of described blanking port, described main shaft is arranged in described discharging casing and relatively rotates, fixing described second sprocket wheel in end of described main shaft, described the second sprocket wheel and described actuating unit are in transmission connection, and on described main shaft, symmetry is fixedly installed described impeller flabellum.
Further, the top that is positioned at described blanking port in described sub-material casing is provided with shield, the top of described shield is fixedly connected with rocker shaft, the two ends of described rocker shaft are passed and are fixed on described sub-material casing and relatively rotate, the end of described rocker shaft is fixed with rocking arm, the side of described sub-material casing is provided with angle seat, between described angle seat and described rocking arm, is provided with spring.
Further, the rear side of described roller is also provided with rear push pedal, the top of described rear push pedal and described front push pedal is connected with lamina tecti, and the rear side that the bottom of described sub-material casing is positioned at described rear push pedal movement position is provided with grey quarrel, and the bottom of described grey quarrel is provided with ash bucket.
Further, in described sub-material casing, be also vertically installed with pressing plate, on described pressing plate, be provided with axle sleeve, described push rod is relative sliding in described axle sleeve, on described axle sleeve, be also provided with gland, the bottom that is positioned at described feeding mouth in described sub-material casing is provided with pan feeding pressing plate, and described pan feeding pressing plate and described lamina tecti be top force fit mutually, and the top of described front push pedal is also provided with guide plate.
Further, the top of described sub-material casing is positioned at described blanking port top and is also provided with observation window, and on described observation window, is provided with observation window pressing plate, and described observation window pressing plate is fixed on described sub-material casing by suspension ring.
Further, described impeller flabellum comprises the gear leaf being vertically fixed on described main shaft and is connected to described gear leaf top and to the leaf of sweeping of main shaft rotation direction bending.
Further, described actuating unit comprises motor, and the mouth of described motor is provided with the 3rd sprocket wheel, and described the second sprocket wheel is also coaxially connected with the 4th sprocket wheel, described the 3rd sprocket wheel is connected with described the second chain sprocket drive, and described the first sprocket wheel is connected by chain gear with described the 4th sprocket wheel.
Compared with prior art beneficial effect of the present invention is: during use, the feeding mouth of feeding distribution mechanism is docked with hopper, the discharging opening of shedding mechanism is docked with slat conveyer, only need to control the controlled unloader of rotation unloading type lock gas of the present invention and can realize quantitative feed, accurately realize and control the sub-material discharging state of material.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of feeding distribution mechanism in the present invention.
Fig. 3 be in Fig. 2 A-A to cutaway view.
Fig. 4 be in Fig. 2 B-B to cutaway view.
Fig. 5 is the cutaway view of shedding mechanism side direction in the present invention.
Fig. 6 is the backward cutaway view of shedding mechanism in the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
As shown in Figures 1 to 6, the controlled unloader of rotation unloading type lock gas of the present invention, comprises feeding distribution mechanism 1, shedding mechanism 2 and actuating unit 3, feeding distribution mechanism comprises sub-material casing 101 and material-pulling device 102, sub-material casing one side roof part is provided with feeding mouth 103, sub-material casing opposite side bottom is provided with blanking port 104, material-pulling device comprises front push pedal 105, push rod 106, connecting rod 107, eccentric wheel 108, crank shaft 109 and the first sprocket wheel 110, the first sprocket wheel and actuating unit 3 are in transmission connection, the first sprocket wheel 110 is connected with eccentric wheel 108 coaxial rotation by crank shaft 109, one end of connecting rod 107 is connected to the eccentric position on eccentric wheel 108 by rotating shaft, one end of push rod 106 is connected with the other end of connecting rod 107 by rotating shaft, and the other end of push rod 106 is fixed on the rear side of front push pedal 105, the rear side two ends of front push pedal 105 are also provided with roller 111, push rod 106 moves reciprocatingly in sub-material casing 101 between blanking port 104 rears and feeding mouth 103 bottoms, shedding mechanism 2 comprises discharging casing 201, the second sprocket wheel 202, main shaft 203 and impeller flabellum 204, the top of discharging casing 201 is provided with material receiving port 205, the bottom of discharging casing 201 is provided with discharging opening 206, material receiving port 205 is connected to the bottom of blanking port 104, main shaft 203 is arranged in discharging casing 201 and relatively rotates, the end of main shaft 203 is fixed the second sprocket wheel 202, the second sprocket wheels 202 and is in transmission connection with actuating unit 3, and on main shaft 203, symmetry is fixedly installed impeller flabellum 204, during use, the feeding mouth of feeding distribution mechanism is docked with hopper, the discharging opening of shedding mechanism is docked with slat conveyer, only need to control the controlled unloader of rotation unloading type lock gas of the present invention and can realize quantitative feed, accurately realize and control the sub-material discharging state of material, material is entered after sub-material casing by hopper, because the rear side of front push pedal is connected and can realizes front-rear reciprocation movement with eccentric stiffener, and then under identical interval time, material dosing is pushed into blanking port to be fallen, meanwhile, between the impeller flabellum of shedding mechanism, form a material container cavity, along with the rotation of main shaft, the material falling in container cavity drains in other mechanisms that comprise slat conveyer by discharging opening, it should be pointed out that the rotary course of not unique corresponding container cavity of crank motion of front push pedal, can reduce the velocity of rotation of impeller by the propelling movement frequency of push pedal before regulating, after realization repeatedly pushes material, wheel rotation realizes discharge No. one time, in addition, in order to prevent that material from blocking up at the material receiving port place of shedding mechanism, can be at the dorsal part setting operation mouth of discharging casing, pressing plate is set on gathering hole, and pressing plate is screwed on discharging casing, like this, when occurring blocking up, can realize cleaning by opening pressing plate, also can be set to transparent panel by pressing plate, directly monitor discharging state, because main shaft rotates relative to discharging casing regularly, can on discharging casing, end cap be set, on end cap, by bearing, connect main shaft, like this, end cap plays and supports and fixing effect, can also be for convenience detach, bearing can effectively reduce wear.
The controlled unloader of rotation unloading type lock gas of the present invention, the top that is positioned at blanking port in sub-material casing 101 is provided with shield 112, the top of shield 112 is fixedly connected with rocker shaft 113; two ends of rocker shaft 113 are passed and are fixed on sub-material casing 101 and relatively rotate; the end of rocker shaft 113 is fixed with rocking arm 114; side of sub-material casing is provided with angle seat 115, between angle seat 115 and rocking arm 114, is provided with spring 116; Generally, under the effect of spring force, shield is the state in sealing or semitight by blanking port, when current push pedal pushes material, under the pressure effect of top, shield is opened, and material falls into shedding mechanism, by regulating the length of shield, can realize and control the evenly appropriate shedding mechanism that falls into of material.
Due in propelling movement process, inevitably some materials are brought into the rear side of front push pedal, the controlled unloader of rotation unloading type lock gas of the present invention, the rear side of roller 111 is also provided with rear push pedal 117, rear push pedal 117 is connected with lamina tecti with the top of front push pedal 105, the rear side that the bottom of sub-material casing 101 is positioned at rear push pedal 117 movement positions is provided with grey quarrel, and the bottom of grey quarrel is provided with ash bucket 118; Like this, the propelling movement effect by rear push pedal, pushes to ash bucket by the material that accidentally falls into front push pedal rear side, only needs periodic cleaning ash bucket, and the material in ash bucket is also reusable.
Qualitative in order to guarantee the guiding steady of pushrod movement process, the controlled unloader of rotation unloading type lock gas of the present invention, in sub-material casing 101, be also vertically installed with pressing plate 119, on pressing plate 119, be provided with axle sleeve 120, push rod 106, at the interior relative sliding of axle sleeve 120, is also provided with gland 121 on axle sleeve, the bottom that is positioned at feeding mouth in sub-material casing is provided with pan feeding pressing plate 122, pan feeding pressing plate 122 and lamina tecti be top force fit mutually, and the top of front push pedal 105 is also provided with guide plate 123; Like this, under the suppressing action of pan feeding pressing plate and the directional tagging of axle sleeve, the sense of motion of push rod and front push pedal is effectively guaranteed, meanwhile, pan feeding pressing plate also plays and prevents that material from entering the effect of front push pedal rear side, while moving after front push pedal, pan feeding pressing plate pushes up the cover plate that bears down on one, can be by under the material scraper on lamina tecti; The effect of guide plate is the motion of the front push pedal of guiding on the one hand, the material that falls into sub-material casing can be slided and be dispensed to front side on the other hand, prevents that material from blocking up at feeding mouth.
Running state for effective monitoring feeding distribution mechanism, the controlled unloader of rotation unloading type lock gas of the present invention, the top of sub-material casing 101 is positioned at blanking port top and is also provided with observation window, and on observation window, being provided with observation window pressing plate 124, observation window pressing plate is fixed on sub-material casing by suspension ring 125.
The controlled unloader of rotation unloading type lock gas of the present invention, impeller flabellum 204 comprises the gear leaf being vertically fixed on main shaft and is connected to gear leaf top and to the leaf of sweeping of main shaft rotation direction bending, the impeller flabellum of bending not only can improve the stability of structure, and the leaf of sweeping of bending contributes to be attached under the material scraper of discharging cabinet wall simultaneously.
The transmission of power of actuating unit and feeding distribution mechanism and shedding mechanism, can realize in the following manner: actuating unit 3 comprises motor 301, the mouth of motor is provided with the 3rd sprocket wheel 302, the second sprocket wheel 202 is also coaxially connected with the 4th sprocket wheel 207, the 3rd sprocket wheel 302 is connected with the second sprocket wheel 202 transmissions, and the first sprocket wheel 110 is connected by chain gear with the 4th sprocket wheel 207.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (7)
1. the controlled unloader of rotation unloading type lock gas, is characterized in that, comprises feeding distribution mechanism, shedding mechanism and actuating unit;
Described feeding distribution mechanism comprises sub-material casing and material-pulling device, described sub-material casing one side roof part is provided with feeding mouth, described sub-material casing opposite side bottom is provided with blanking port, described material-pulling device comprises front push pedal, push rod, connecting rod, eccentric wheel, crank shaft and the first sprocket wheel, described the first sprocket wheel and described actuating unit are in transmission connection, described the first sprocket wheel is connected with described eccentric wheel coaxial rotation by described crank shaft, one end of described connecting rod is connected to the eccentric position on described eccentric wheel by rotating shaft, one end of described push rod is connected with the other end of described connecting rod by rotating shaft, and the other end of described push rod is fixed on the rear side of described front push pedal, the rear side two ends of described front push pedal are also provided with roller, described push rod moves reciprocatingly in described sub-material casing between described blanking port rear and described feeding mouth bottom,
Described shedding mechanism comprises discharging casing, the second sprocket wheel, main shaft and impeller flabellum, the top of described discharging casing is provided with material receiving port, the bottom of described discharging casing is provided with discharging opening, described material receiving port is connected to the bottom of described blanking port, described main shaft is arranged in described discharging casing and relatively rotates, fixing described second sprocket wheel in end of described main shaft, described the second sprocket wheel and described actuating unit are in transmission connection, and on described main shaft, symmetry is fixedly installed described impeller flabellum.
2. rotation unloading type as claimed in claim 1 is locked the controlled unloader of gas, it is characterized in that, the top that is positioned at described blanking port in described sub-material casing is provided with shield, the top of described shield is fixedly connected with rocker shaft, the two ends of described rocker shaft are passed and are fixed on described sub-material casing and relatively rotate, the end of described rocker shaft is fixed with rocking arm, and the side of described sub-material casing is provided with angle seat, between described angle seat and described rocking arm, is provided with spring.
3. rotation unloading type as claimed in claim 1 is locked the controlled unloader of gas, it is characterized in that, the rear side of described roller is also provided with rear push pedal, the top of described rear push pedal and described front push pedal is connected with lamina tecti, the rear side that the bottom of described sub-material casing is positioned at described rear push pedal movement position is provided with grey quarrel, and the bottom of described grey quarrel is provided with ash bucket.
4. rotation unloading type as claimed in claim 3 is locked the controlled unloader of gas, it is characterized in that, in described sub-material casing, be also vertically installed with pressing plate, on described pressing plate, be provided with axle sleeve, described push rod is relative sliding in described axle sleeve, is also provided with gland on described axle sleeve, and the bottom that is positioned at described feeding mouth in described sub-material casing is provided with pan feeding pressing plate, described pan feeding pressing plate and described lamina tecti be top force fit mutually, and the top of described front push pedal is also provided with guide plate.
5. rotation unloading type as claimed in claim 1 is locked the controlled unloader of gas, it is characterized in that, the top of described sub-material casing is positioned at described blanking port top and is also provided with observation window, and on described observation window, being provided with observation window pressing plate, described observation window pressing plate is fixed on described sub-material casing by suspension ring.
6. the controlled unloader of rotation unloading type as claimed in claim 1 lock gas, is characterized in that, described impeller flabellum comprises the gear leaf being vertically fixed on described main shaft and is connected to described gear leaf top and to the leaf of sweeping of main shaft rotation direction bending.
7. rotation unloading type as claimed in claim 1 is locked the controlled unloader of gas, it is characterized in that, described actuating unit comprises motor, the mouth of described motor is provided with the 3rd sprocket wheel, described the second sprocket wheel is also coaxially connected with the 4th sprocket wheel, described the 3rd sprocket wheel is connected with described the second chain sprocket drive, and described the first sprocket wheel is connected by chain gear with described the 4th sprocket wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310650982.4A CN103662869B (en) | 2013-12-08 | 2013-12-08 | Rotate the controlled unloader of unloading type lock gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310650982.4A CN103662869B (en) | 2013-12-08 | 2013-12-08 | Rotate the controlled unloader of unloading type lock gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103662869A true CN103662869A (en) | 2014-03-26 |
| CN103662869B CN103662869B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310650982.4A Expired - Fee Related CN103662869B (en) | 2013-12-08 | 2013-12-08 | Rotate the controlled unloader of unloading type lock gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN103662869B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105173786A (en) * | 2015-10-14 | 2015-12-23 | 常州大学 | Rotary feeder sealed through air curtains |
| CN106197048A (en) * | 2016-08-29 | 2016-12-07 | 大峘集团有限公司 | A kind of agglomerates of sintered pellets vertical cooling device blanking drawer valve |
| CN111623858A (en) * | 2020-05-09 | 2020-09-04 | 扬州大学 | Quantitative sampling device for civil engineering experiments and application method thereof |
| CN112960363A (en) * | 2021-02-04 | 2021-06-15 | 湖州泰能物联科技有限公司 | High-efficient directional conveyor of connector who prevents blocking up |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4201287A (en) * | 1977-12-14 | 1980-05-06 | Gebrueder Buehler Ag | Drag chain conveyor |
| CN2680626Y (en) * | 2003-11-04 | 2005-02-23 | 首钢总公司 | Fluidized form stock feeder |
| CN201737416U (en) * | 2010-06-18 | 2011-02-09 | 安徽省芜湖市信达粉末冶金零部件有限公司 | Powder feeding device |
| CN202245286U (en) * | 2011-10-14 | 2012-05-30 | 青岛科瑞新型环保材料有限公司 | Discharging device used in process for packaging insulation board |
| CN203612675U (en) * | 2013-12-08 | 2014-05-28 | 黄冈市威斯机械配件有限公司 | Rotary discharge type air-lock controllable unloading machine |
-
2013
- 2013-12-08 CN CN201310650982.4A patent/CN103662869B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4201287A (en) * | 1977-12-14 | 1980-05-06 | Gebrueder Buehler Ag | Drag chain conveyor |
| CN2680626Y (en) * | 2003-11-04 | 2005-02-23 | 首钢总公司 | Fluidized form stock feeder |
| CN201737416U (en) * | 2010-06-18 | 2011-02-09 | 安徽省芜湖市信达粉末冶金零部件有限公司 | Powder feeding device |
| CN202245286U (en) * | 2011-10-14 | 2012-05-30 | 青岛科瑞新型环保材料有限公司 | Discharging device used in process for packaging insulation board |
| CN203612675U (en) * | 2013-12-08 | 2014-05-28 | 黄冈市威斯机械配件有限公司 | Rotary discharge type air-lock controllable unloading machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105173786A (en) * | 2015-10-14 | 2015-12-23 | 常州大学 | Rotary feeder sealed through air curtains |
| CN105173786B (en) * | 2015-10-14 | 2018-02-02 | 常州大学 | The rotary table feeder sealed using air curtain |
| CN106197048A (en) * | 2016-08-29 | 2016-12-07 | 大峘集团有限公司 | A kind of agglomerates of sintered pellets vertical cooling device blanking drawer valve |
| CN111623858A (en) * | 2020-05-09 | 2020-09-04 | 扬州大学 | Quantitative sampling device for civil engineering experiments and application method thereof |
| CN111623858B (en) * | 2020-05-09 | 2022-03-15 | 扬州大学 | Quantitative sampling device for civil engineering experiments and application method thereof |
| CN112960363A (en) * | 2021-02-04 | 2021-06-15 | 湖州泰能物联科技有限公司 | High-efficient directional conveyor of connector who prevents blocking up |
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| Publication number | Publication date |
|---|---|
| CN103662869B (en) | 2015-12-09 |
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Address after: 438000 No. 57 Yanjiang Road, Huanggang, Hubei, Huangzhou Applicant after: Huanggang City Wei Si Machinery Co., Ltd. Address before: 438000 No. 57 Yanjiang Road, Huanggang, Hubei, Huangzhou Applicant before: HUANGGANG WEISI MACHINERY PARTS CO., LTD. |
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