Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome spiral slide in the prior art due to structure
Limitation cannot the defect used in the special-shaped storehouse such as taper storehouse, so that providing one kind can use in the special-shaped storehouse such as taper storehouse,
To reduce the screw conveying structure of material outlet speed.
In order to solve the above-mentioned technical problem, the utility model provides a kind of screw conveying structure, comprising:
At least two sections of spiral slides, the outlet of one section of spiral slide and the import of another section of spiral slide are solid
It connects, and the radius of spin gradually becomes smaller from the material inlet of the screw conveying structure to material outlet.
Further, the spiral angle of at least two sections spiral slides from the material inlet to the material outlet gradually
Become smaller.
Further, the difference between the spiral angle of adjacent two sections of spiral slides is less than 20 °.
Further, at least two sections of spiral slides are from the material inlet to sequentially connected first spiral slide of material outlet
Road, the second spiral slide and third spiral slide, the spiral angle of the third spiral slide is than second spiral slide
Spiral angle is 5 ° big.
Further, the spiral slide to the tilt angle of spiral center be 10 °.
It further, further include several support devices being arranged on the spiral slide, the other end of the support device
It is fixed on the warehouse inner wall for placing the spiral slide.
Further, the support device is triangular support bracket or three-legged supporting frame.
It further, further include the feed device being set at the material inlet.
Further, the feed device is the funnel-form that import internal diameter is greater than exit inside diameter.
Further, the exit inside diameter of the feed device is consistent with the entrance width of the spiral slide.
Technical solutions of the utility model have the advantages that
1. screw conveying structure provided by the utility model, at least two sections of spiral slides, one section of spiral slide goes out
Mouth is affixed with the import of another section of spiral slide, and the radius of spin is from the material inlet of the screw conveying structure to material
Outlet gradually becomes smaller.Due at least two sections of spiral slides partly without leave the material inlet of screw conveying structure to material outlet gradually
Become smaller, therefore the screw conveying structure can use in the special-shaped storehouse such as taper storehouse, and according to the shape in anisotropic storehouse and volume spirit
The size of adjustment radius living, improves applicability, while reducing the muzzle velocity of material.
2. screw conveying structure provided by the utility model, the spiral angles of at least two sections spiral slides is from the object
Material import to the material outlet gradually becomes smaller.Spiral angle gradually becomes smaller, and the speed for declining material in spiral slide is more
Add slowly, and be suitable for different material characteristics, reduces material in the speed in exit.
3. screw conveying structure provided by the utility model, support device is triangular support bracket or three-legged supporting frame.Using
Triangular support bracket or three-legged supporting frame are more preferable as the stability of support, and facilitate adjustment installation site.
4. screw conveying structure provided by the utility model, feed device is the funnel that import internal diameter is greater than exit inside diameter
Shape.Funnelform feed device is toppled over and is conveyed downwards convenient for material, and improves flowing velocity of the material in feed funnel.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
A kind of specific embodiment of screw conveying structure as shown in Figure 1, including at least two sections of spiral slides 2, one section
The outlet of the spiral slide 2 is affixed with the import of another section of spiral slide 2, and the radius of spin is from the helical feed knot
The material inlet of structure to material outlet gradually becomes smaller.
Above-mentioned screw conveying structure, at least two sections of spiral slides 2, the outlet of one section of spiral slide 2 and another section of institute
The import for stating spiral slide 2 is fixedly connected, and the radius of spin of at least two sections spiral slides 2 is from the object of the screw conveying structure
Material import to material outlet gradually becomes smaller.Screw conveying structure in compared with the prior art, can be in the special-shaped storehouse such as taper storehouse
Middle use, and the size of radius is adjusted flexibly according to the shape in anisotropic storehouse and volume, applicability is improved, while reducing material
Muzzle velocity.
The screw conveying structure of the present embodiment can be with the material of conveying granular, such as drusen etc..Drusen with
The problems such as impact of charging plate can generate heat, and continuing feeding will cause heat concentration, and temperature increases.Due to sulphur burning point and quick-fried
Point is extremely low, so have to that material is avoided directly to impact charging plate, caused by temperature the problem of increasing.In addition, drusen is from 7
Meter or more height difference fall, have cracking speed when reaching bottom bin bottom, directly impact feed bin can generate many powder
Dirt easily causes the consequences such as explosion when dust concentration is larger, so having to reduce the final impact velocity of drusen, avoid
Dust is generated, therefore uses the screw conveying structure of the present embodiment.Specifically, the outlet of one section of spiral slide 2 and another
It is welded to connect between the import of one section of spiral slide 2, is welded to connect the switching performance that can make at least two sections spiral slides 2
Good, connection is smooth, so that the rigidity of structure is big, overall performance is good, can also be connected using other modes, such as connecting plate and bolt
The mode of fastening.
The spiral angle of at least two sections spiral slides 2 gradually becomes smaller from the material inlet to the material outlet.
This arrangement reduces materials because of enormous impact caused by too fast 4 bottom warehouse of falling speed;Prevent the excessive band of material impact
The harm such as spontaneous combustion, explosion caused by the accumulation of heat come causes temperature to increase.
As alternative embodiment, the radius of spin of every section of spiral slide 2 at least two sections of spiral slides 2 can
With all identical, spiral angle is also identical, and it is adjusted correspondingly according to the concrete shape and size of warehouse.
Specifically, the difference between the spiral angle of the adjacent two sections spiral slides 2 is less than 20 °.Described in adjacent two sections
The difference of the spiral angle of spiral slide 2 is smaller, and the gradient of top-down spiral slide 2 is with regard to smaller, and material is in spiral slide 2
When middle whereabouts, speed can compare adjacent two sections of spiral slides 2 spiral angle between the big speed of difference want
Slowly so that material fall when it is smaller to the impact of warehouse bottom, avoid because impact it is excessive caused by dust concentration mistake
Big problem.
At least two sections of spiral slides 2 be from the material inlet to sequentially connected first spiral slide 21 of material outlet,
Second spiral slide 22 and third spiral slide 23, the spiral angle of the third spiral slide 23 is than second spiral slide
22 spiral angle is 5 ° big.Specifically, the spiral angle of the first spiral slide 21 is bigger than the spiral angle of the second spiral slide 22
15 °, the spiral angle of the second spiral slide of spiral angle 22 of third spiral slide 23 is 5 ° big, and such material is entering third spiral shell
Decrease speed after revolving slideway 23 will slightly fast one relative to the material decrease speed of the first spiral slide 21, the second spiral slide 22
A bit, to prevent accumulation of the material at third spiral slide 23, guarantee smooth delivery of power of the material from material inlet to material outlet.
In order to avoid material skids off slideway under centripetal force effect, bin wall is impacted, the spiral slide 2 is to spiral center
Tilt angle be 10 °, which can also be adjusted flexibly with the characteristic and actual needs of material.
It further include several support devices 3 being arranged on the spiral slide 2, the other end of the support device 3 is fixed
In 4 inner wall of warehouse for placing the spiral slide 2.The spiral slide 2 is fixed on by support device 3 in warehouse 4
On inner wall.Specifically, the support device 3 is triangular support bracket, naturally it is also possible to be three-legged supporting frame.The triangular support bracket
One end connect by welding with the outer wall of spiral slide 2, the side that the other end of the triangular support bracket passes through welding
Formula is connect with 4 inner wall of warehouse.Triangular support bracket can need to carry out according to actual installation length adjustment, several triangular support bracket edges
Spiral slide 2 is spaced apart, and can be added according to demand in the corner of warehouse 4, to guarantee support strength.Triangular support bracket
It is arranged and solves the problems, such as that the stability not easy to install and support in the special-shaped storehouse such as taper storehouse of spiral slide 2 is more preferable.
It further include the feed device 1 at the material inlet.The feed device 1 is connected with material inlet, material
It can be directly from the material inlet that feed device 1 enters spiral slide 2.
As a kind of specific embodiment, the feed device 1 is the funnel-form that import internal diameter is greater than exit inside diameter.Leakage
Bucket-shaped feed device 1 is toppled over and is conveyed downwards convenient for material, and improves flowing velocity of the material in feed funnel.
The exit inside diameter of the feed device 1 is consistent with the entrance width of the spiral slide 2.The outlet of feed device 1
Internal diameter is consistent with the entrance width of the spiral slide 2 so that the outlet of feed device 1 directly with the spiral slide 2 into
Mouth connection, linking are easier.
As alternative embodiment, feed device 1 can also be cylindrical body or square etc..
When carrying out material conveying using the screw conveying structure of the present embodiment, fallen first according to material from feed device 1
The angle of the direction setting spiral slide 2 of speed, will guarantee the directional velocity one that the direction of spiral slide 2 and material fall when lower
It causes, to avoid the direct impact of material and bulkhead.Then by spiral slide 2 along carrying out spiral on the inside of warehouse 4, and triangle is utilized
Support frame is fixed in 4 inner wall of warehouse, and the radius of spin is determined according to the volume size of warehouse 4, thus to the operation side of material
To being oriented to.Material is slowly toppled over from the import of feed device 1 again, material successively passes through feeding under the effect of gravity
Device 1, the first spiral slide 21, the second spiral slide 22 and third spiral slide 23 are exported from material outlet.Due to the first spiral shell
The radius of spin of rotation slideway 21, the second spiral slide 22 and third spiral slide 23 gradually becomes smaller from top to bottom, and the second spiral
The spiral angle of slideway 22 is less than the spiral angle of the first spiral slide 21, and the spiral angle of third spiral slide 23 is slightly larger than
The spiral angle of second spiral slide 22 not only can be fixedly attached in up big and down small taper storehouse, guarantee object
Material slowly conveying downwards, it is ensured that material directional velocity when finally skidding off third spiral slide 23 is still along storehouse
4 inner wall of body, out of plumb frontal impact bulkhead.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.