CN211682884U

CN211682884U - Powder spiral metering conveyor

Info

Publication number: CN211682884U
Application number: CN202020016362.0U
Authority: CN
Inventors: 黄文景; 黄骁民; 林伟端; 田义; 王惠风
Original assignee: Fujian South Highway Machinery Co Ltd
Current assignee: Fujian South Highway Machinery Co Ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-10-16
Anticipated expiration: 2030-01-06

Abstract

The utility model relates to a powder conveyer technical field, in particular to powder spiral measurement conveyer. This equipment includes the conveyer pipe, the spiral feeding axle, including a motor, an end cap, a controller, and a cover plate, hinder the material leaf dish, the one end of spiral feeding axle towards the discharge gate is located to hinder the material leaf dish, it includes a plurality of material blades that cut that set up around the axis, it is the cutting part to cut material blade one side, the opposite side is the back, it thins gradually from back to cutting part to cut the wall thickness of material blade, the cutting part is located cuts material blade direction of rotation front side, two adjacent pieces cut have crisscross range upon range of cutting part and back between the material blade, and have the punishment in advance clearance between the cutting part of crisscross. The powder is discharged in a cutting mode, the discharge amount is relatively constant, and the powder is accurately metered by the spiral metering conveyor; the reinforcing ribs and the supporting outer ring reinforce the material cutting blades, the material cutting blades can bear loads in more axial directions, deformation of the material blocking blade disc is further avoided, and the service life of equipment is long.

Description

Powder spiral metering conveyor

Technical Field

The utility model relates to a powder conveyer technical field, in particular to powder spiral measurement conveyer.

Background

Traditional stabilized soil, the supporting powder continuous type measurement conveyor of continuous type cement concrete and asphalt concrete mixing equipment is joined in marriage frequency conversion screw conveyer by a transition bin and is added one set of weighing screw conveyer and accomplish the powder continuous measurement work, and continuous measurement can be realized to traditional structure, nevertheless because of feed poor stability, measurement accuracy is far more than 5%, makes the measurement unstable, and is undulant big, influences the quality of finished product material, and serious meeting directly leads to the engineering quality problem.

In order to solve the problems, the Chinese patent with the publication number of CN 206939710U discloses an extrusion type powder screw conveyor, which comprises a conveying pipe, a screw shaft and a motor, wherein the conveying pipe is provided with a feeding hole and a discharging hole; the method is characterized in that: the screw shaft comprises a first screw section far away from the discharge port of the conveying pipe and a second screw section close to the discharge port of the conveying pipe, and the screw pitch of the first screw section is greater than that of the second screw section; the conveying pipe is also provided with a damping feeding blade disc which is coaxially connected with the screw shaft and is positioned at the tail part of the second screw section of the screw shaft, so that the powder is conveyed to the discharge hole through the damping feeding blade disc. The existing powder conveyor enables powder to be extruded to stabilize the filling coefficient by arranging the damping feeding blade disc, the damping feeding blade disc can bear large transverse load in the extrusion process, bending deformation or fracture of the damping feeding blade can occur easily, the service life is short, and the equipment loss is high.

SUMMERY OF THE UTILITY MODEL

For overcoming the deficiencies in the prior art, the utility model provides a powder spiral metering conveyor with accurate metering and long service life.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a powder spiral measurement conveyer, is including the conveyer pipe that is equipped with feed inlet and discharge gate, locate spiral feeding axle in the conveyer pipe, the rotatory motor of drive spiral feeding axle, its characterized in that: still including hindering the material leaf dish, hinder the material leaf dish and locate the one end of spiral feed axle towards the discharge gate, hinder the material leaf dish and include a plurality of material cutting blades that set up around the axis, cut material blade one side and be the cutting part, the opposite side is the back, cuts the wall thickness of material blade and thins from back to cutting part gradually, the cutting part is located cuts material blade rotation direction front side, has crisscross range upon range of cutting part and back between two adjacent material cutting blades, and has the punishment in advance clearance between the cutting part of crisscross range upon range of department and back.

Furthermore, hinder material bladed disk still includes central siphon, supports the outer loop, cut the material blade and locate on the central siphon, support the outer loop around locating and cutting the material blade outer edge, make to cut the material blade and be located and support between outer loop and the central siphon, and cut material blade upper and lower both ends and be connected with supporting outer loop and central siphon respectively.

Furthermore, the material cutting blade is provided with a reinforcing rib towards the discharge port, the reinforcing rib is arranged at the back of the material cutting blade, and two ends of the reinforcing rib are respectively connected with the support outer ring in the shaft tube.

Furthermore, a hexagonal through hole is formed in the shaft tube, the spiral feeding shaft comprises a main shaft and spiral blades arranged on the main shaft in a winding mode, a hexagonal shaft and a limiting sleeve are arranged at one end of the main shaft, the limiting sleeve can be sleeved on the hexagonal shaft, the material blocking blade disc is sleeved on the hexagonal shaft of the main shaft through the hexagonal through hole of the shaft tube so that the material blocking blade disc can rotate along with the main shaft, and the limiting sleeve is sleeved on the hexagonal shaft so as to limit the movement of the material blocking blade disc in the axis direction.

Furthermore, a necking part is arranged in the conveying pipe, the necking part protrudes inwards and winds the inner surface of the conveying pipe, the necking part is located between the spiral blade and the material blocking blade disc, the large end of the necking part faces the direction of the spiral blade, the small end of the necking part faces the direction of the material blocking blade disc, and the outer diameter of the small end of the necking part is smaller than the inner diameter of the supporting outer ring.

Further, the discharge port is arranged at one end of the conveying pipe and is positioned at the rear side of the material blocking blade disc.

Furthermore, bearings are arranged at two ends of the spiral feeding shaft, and the spiral feeding shaft is rotatably arranged in the conveying pipe through the bearings.

Furthermore, a conveying pipe extends out of one end of the spiral feeding shaft, and the motor is connected with one end, extending out of the spiral feeding shaft, of the coupler.

According to the description of the utility model, compared with the prior art, the utility model provides a powder spiral metering conveyor, the powder is discharged by cutting, the discharge amount is relatively constant, and the powder spiral metering conveyor can accurately meter; the reinforcing ribs and the supporting outer ring reinforce the material cutting blades, the material cutting blades can bear more loads in the axial direction, the deformation of the material blocking blade disc is further avoided, and the service life of equipment is long; due to the arrangement of the necking part, powder passing through the material blocking blade disc is completely positioned in the cutting range of the material cutting blade, meanwhile, a passing blind area of the powder at the position of the support outer ring is eliminated, and the service life of the equipment is further prolonged while the powder passing performance is improved.

Drawings

Fig. 1 is the schematic view of the cross-sectional structure of the spiral powder measuring conveyor of the present invention.

Fig. 2 is the schematic view of the structure of the spiral feeding shaft and the material blocking blade disc of the present invention.

Fig. 3 is a schematic structural view of the material blocking blade disc of the present invention hidden and supported by the outer ring.

The labels in the figure correspond to the following: 1. the feeding device comprises a conveying pipe, 11 feed inlets, 12 discharge outlets, 13 necking parts, 2 spiral feeding shafts, 21 main shafts, 22 spiral blades, 23 bearings, 24 hexagonal shafts, 25 limiting sleeves, 3 motors, 31 couplers, 4 material blocking blade discs, 41 shaft tubes, 411 hexagonal through holes, 42 material cutting blades, 421 blade parts, 422 back parts, 423 material passing gaps, 43 supporting outer rings and 44 reinforcing ribs.

Detailed Description

The present invention will be further described with reference to the following detailed description.

Referring to fig. 1 to 3, a spiral powder metering conveyor comprises a conveying pipe 1, a spiral feeding shaft 2, a motor 3 and a material blocking blade disc 4.

The conveying pipe 1 comprises a feeding hole 11 and a discharging hole 12, wherein the feeding hole 11 is arranged at the upper part of one end of the conveying pipe, and the discharging hole 12 is arranged at the lower part of the other end of the conveying pipe 1. Spiral feeding shaft 2 includes main shaft 21, around locating the helical blade 22 on main shaft 21, and main shaft 21 both ends are equipped with bearing 23, and spiral feeding shaft 2 passes through bearing 23 rotatable locate the conveyer pipe 1 in, and conveyer pipe 1 is extended to main shaft 21 one end, and motor 3 is connected through the one end that shaft coupling 31 and main shaft 21 extend.

Hinder material leaf dish 4 and locate spiral feeding shaft 2 towards the one end of discharge gate 12, hinder material leaf dish 4 and include central siphon 41, cut material blade 42, support outer loop 43, be equipped with hexagon through-hole 411 in the central siphon 41, main shaft 21 one end of spiral feeding shaft 2 is equipped with hexagonal axle 24, stop collar 25 can overlap and locate hexagonal on-axle 24, hinder material leaf dish 4 and locate on hexagonal axle 24 of main shaft 21 so that hinder material leaf dish 4 can be along with main shaft 21 co-rotation through the hexagon through-hole 411 cover of central siphon 41, stop collar 25 overlaps and locates on hexagonal axle 24 in order to restrict and hinder the removal of material leaf dish 4 in the axis direction. The material cutting blades 42 are provided with a plurality of material cutting blades 42 and wound outside the shaft tube 41, the support outer ring 43 is wound on the outer edge of each material cutting blade 42, so that the material cutting blades 42 are positioned between the support outer ring 43 and the shaft tube 41, the upper ends and the lower ends of the material cutting blades 42 are respectively connected with the support outer ring 43 and the shaft tube 41, one side of each material cutting blade 42 is a blade portion 421, the other side of each material cutting blade 42 is a back portion 422, the wall thickness of each material cutting blade 42 is gradually reduced from the back portion 422 to the blade portion 421, the blade portion 421 is positioned on the front side of the rotation direction of the material cutting blade 42, staggered and stacked blade portions 421 and back portions 422 are arranged between two adjacent material cutting blades 42, a material passing gap 423 is arranged between the blade portions 421 and the back portions 422 at the staggered and stacked positions, one surface of each material cutting blade 42, a reinforcing rib 44.

Be equipped with throat 13 in the conveyer pipe 1, throat 13 is inwards protruding around locating conveyer pipe 1 internal surface, and throat 13 is located helical blade 22 and hinders between the material leaf dish 4, and the main aspects of throat 13 are towards helical blade 22 direction, and the tip orientation hinders the material leaf dish 4 direction, and the tip external diameter of throat 13 is less than the internal diameter that supports outer loop 43, and delivery pipe 1 one end and discharge gate 12 are located and are hindered the material leaf dish 4 rear side to discharge gate 12.

The working principle of the spiral powder metering conveyor is as follows:

the powder enters the conveying pipe 1 through the feeding hole 11 and is conveyed backwards under the driving of the spiral blade 22 of the spiral feeding shaft 2, due to the blocking of the blocking blade disc 4, the powder can be firstly accumulated between the blocking blade disc 4 and the tail end of the spiral blade 22, the filling ratio is gradually increased, the filling ratio gradually tends to be stable after being increased to a certain value, and the spiral metering conveyor for the powder realizes accurate metering output along with the gradual stabilization of the filling coefficient; because the edge part 421 and the back part 422 between two adjacent cutting blades 42 of the blocking blade disc 4 are staggered and stacked, powder is difficult to pass through the blocking blade disc 4 only by extrusion, the front side of the cutting blades 42 of the blocking blade disc 4 facing the conveying direction is the edge part 421, the edge part 421 cuts the accumulated powder in the rotation process of the blocking blade disc 4, the cut powder is sent out through a material passing gap 423 between the edge part 421 and the back part 422 of the other cutting blade, the powder is discharged in a cutting mode, and the discharge amount is relatively constant, so that the metering of the spiral metering conveyor for the powder is more accurate; the outer diameter of the small end of the necking part 13 arranged in the conveying pipe 1 is smaller than the inner diameter of the supporting outer ring 43, so that powder conveyed by the spiral blade 22 is compressed inwards, the powder passing through the material blocking blade disc 4 is completely positioned in the cutting range of the material cutting blade 42, meanwhile, a blind area of the powder passing through the supporting outer ring 43 is eliminated, and the condition that the material blocking blade disc 4 deforms due to the fact that the powder extrudes the supporting outer ring 43 is avoided; the material cutting blades 42 are reinforced by the reinforcing ribs 44 arranged on one surface facing the discharge port 12 and the supporting outer ring 43 arranged on the outer edge of the material cutting blades 42, so that the material cutting blades 42 can bear loads in more axial directions, the deformation of the material blocking blade disc 4 is further avoided, and the service life of the equipment is prolonged.

The above-mentioned only be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and all utilize this design right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. The utility model provides a powder spiral measurement conveyer, is including the conveyer pipe that is equipped with feed inlet and discharge gate, locate spiral feeding axle in the conveyer pipe, the rotatory motor of drive spiral feeding axle, its characterized in that: still including hindering the material leaf dish, hinder the material leaf dish and locate the one end of spiral feed axle towards the discharge gate, hinder the material leaf dish and include a plurality of material cutting blades that set up around the axis, cut material blade one side and be the cutting part, the opposite side is the back, cuts the wall thickness of material blade and thins from back to cutting part gradually, the cutting part is located cuts material blade rotation direction front side, has crisscross range upon range of cutting part and back between two adjacent material cutting blades, and has the punishment in advance clearance between the cutting part of crisscross range upon range of department and back.

2. The spiral metering conveyor for powders of claim 1, wherein: the material blocking blade disc further comprises a shaft tube and a support outer ring, the material cutting blades are arranged on the shaft tube, the support outer ring is wound on the outer edge of the material cutting blades, the material cutting blades are located between the support outer ring and the shaft tube, and the upper end and the lower end of each material cutting blade are connected with the support outer ring and the shaft tube respectively.

3. The spiral metering conveyor for powders of claim 2, wherein: the material cutting blade is provided with a reinforcing rib towards the discharge port, and the reinforcing rib is positioned at the back of the material cutting blade, and two ends of the reinforcing rib are respectively connected with the support outer ring in the shaft tube.

4. The spiral metering conveyor for powders of claim 2, wherein: the spiral feeding shaft comprises a main shaft and spiral blades arranged on the main shaft, a hexagonal shaft and a limiting sleeve are arranged at one end of the main shaft, the limiting sleeve can be sleeved on the hexagonal shaft, the material blocking blade disc is sleeved on the hexagonal shaft of the main shaft through the hexagonal through hole of the shaft so that the material blocking blade disc can rotate along with the main shaft, and the limiting sleeve is sleeved on the hexagonal shaft so as to limit the movement of the material blocking blade disc in the axis direction.

5. The screw metering conveyor for powders of claim 4, wherein: the conveying pipe is internally provided with a necking part, the necking part protrudes inwards and is wound on the inner surface of the conveying pipe, the necking part is positioned between the helical blade and the material blocking blade disc, the large end of the necking part faces the direction of the helical blade, the small end of the necking part faces the direction of the material blocking blade disc, and the outer diameter of the small end of the necking part is smaller than the inner diameter of the supporting outer ring.

6. The spiral metering conveyor for powders of claim 1, wherein: the discharge port is arranged at one end of the conveying pipe and is positioned at the rear side of the material blocking blade disc.

7. The spiral metering conveyor for powders of claim 1, wherein: the spiral feeding shaft is rotatably arranged in the conveying pipe through the bearings.

8. The spiral metering conveyor for powders of claim 1, wherein: the conveyer pipe extends to spiral feed axle one end, the motor passes through the shaft coupling and is connected with the one end that the spiral feed axle extends.