阅读说明：本技术 一种混凝土配料输送机 (Concrete batching conveyer ) 是由 陈克祥 李洪文 于 2021-01-25 设计创作，主要内容包括：本发明公开了一种混凝土配料输送机,包括输送筒、螺旋轴和电机,该电机与该螺旋轴连接并用于驱动螺旋轴在输送筒内旋转运动,该输送筒两端分别设有进料口和出料口,其特征在于：该螺旋轴包括轴杆,该轴杆上沿物料的输送方向依次设有正向螺旋叶片、搅散桨和反向螺旋叶片,且该出料口与该搅散桨位置对应。本发明既解决螺旋轴在输送筒内旋转而推动物料运动,物料出料口处易结料的技术问题,同时也解决输送筒下游封闭端在靠近出料口处的下游封闭区域内存在物料不断挤压输送而持续堆积且在非停机条件下无法被清理的技术问题。(The invention discloses a concrete batching conveyor, which comprises a conveying cylinder, a screw shaft and a motor, wherein the motor is connected with the screw shaft and is used for driving the screw shaft to rotate in the conveying cylinder, and the two ends of the conveying cylinder are respectively provided with a feeding hole and a discharging hole, and the concrete batching conveyor is characterized in that: the screw shaft comprises a shaft rod, wherein a forward screw blade, a stirring paddle and a reverse screw blade are sequentially arranged on the shaft rod along the conveying direction of materials, and the discharge hole corresponds to the position of the stirring paddle. The invention not only solves the technical problems that the screw shaft rotates in the conveying cylinder to push the material to move and the material is easy to be solidified at the material outlet, but also solves the technical problems that the material is continuously extruded and conveyed and continuously accumulated in the downstream closed end of the conveying cylinder in the downstream closed area close to the material outlet and cannot be cleaned under the non-stop condition.)

1. The utility model provides a concrete batching conveyer, includes conveying cylinder (1), screw axis (2) and motor (3), and this motor (3) are connected with this screw axis (2) and are used for driving screw axis (2) at conveying cylinder (1) internal rotation motion, and this conveying cylinder (1) both ends are equipped with feed inlet (1-1) and discharge gate (1-2) respectively, its characterized in that:

the screw shaft (2) comprises a shaft lever (2-4), a forward screw blade (2-1), a dispersing paddle (2-2) and a reverse screw blade (2-3) are sequentially arranged on the shaft lever (2-4) along the conveying direction of materials, and the discharge port (1-2) corresponds to the dispersing paddle (2-2).

2. A concrete batching conveyor as in claim 1 wherein: the dispersing paddles (2-2) comprise a plurality of first radial rods (2-21a) arranged on the circumferential direction of the shaft rod (2-4) and first stirring rods (2-22a) arranged on the first radial rods (2-21 a).

3. A concrete batching conveyor as in claim 2 wherein: the first stirring rods (2-22a) are vertically distributed with the first radial rods (2-21 a).

4. A concrete batching conveyor as claimed in claim 2 or 3 wherein: the first stirring rods (2-22a) on two adjacent first radial rods (2-21a) have a certain included angle and are not vertically distributed.

5. A concrete batching conveyor as claimed in claim 2 or 3 wherein: the first stirring rods (2-22a) and the first radial rods (2-21a) have a certain included angle and are not vertically distributed.

6. A concrete batching conveyor as in claim 1 wherein: the dispersing paddles (2-2) comprise a plurality of driving stirring sheets (2-21b) arranged on the circumferential direction of the shaft rod (2-4) and second stirring rods (2-22b) arranged in the middle of the driving stirring sheets (2-21 b);

the discharge port (1-2) is internally provided with a follow-up paddle (4), and the follow-up paddle (4) is stirred by a driving stirring sheet (2-21b) on the dispersing paddle (2-2) to rotate.

7. A concrete batching conveyor as in claim 6 wherein: the follow-up paddle (4) comprises a paddle shaft (4-1), a follow-up plectrum (4-2) and a third stirring rod (4-3);

the paddle shaft (4-1) is parallel to the shaft lever (2-4) and is rotatably connected with the inner side wall of the discharge hole (1-2);

the paddle shaft (4-1) is provided with a follow-up shifting piece (4-2), and the follow-up shifting piece (4-2) corresponds to the driving shifting piece (2-21 b);

the third stirring rod (4-3) is arranged on the follow-up stirring sheet (4-2) or the paddle shaft (4-1).

8. A concrete batching conveyor as in claim 7 wherein: the follow-up plectrum (4-2) is provided with a plurality of and is evenly distributed along the circumference of the paddle shaft (4-1).

Technical Field

The invention relates to mechanical equipment, in particular to a concrete batching conveyor.

Background

When the concrete is proportioned, materials in the aggregate bin, the gravel bin, the cement bin and the like are respectively conveyed into the stirrer by adopting a plurality of screw conveyors to be stirred so as to realize uniform mixing according to a certain proportion. Adopt screw conveyer can realize simultaneously stably carrying and measurement, and can realize carrying totally enclosed, carry and do not have advantages such as reveal and carry no dust. Referring to fig. 1, the prior screw conveyor has the following disadvantages during operation:

firstly, the screw shaft rotates in the conveying cylinder to push the materials to move, so that the materials (P) are continuously extruded and are continuously compacted and easy to agglomerate; the caking materials can be blocked at the inner end of the discharge hole of the conveying cylinder or on the discharge area (M) of the inner side wall of the periphery of the discharge hole of the conveying cylinder without falling off, and meanwhile, the conveying cylinder is difficult to clean after the caking materials are deposited, so that a series of problems of large equipment load, large noise, easy halt, too fast equipment abrasion, low working life, unstable conveying, inaccurate metering and the like can be caused;

secondly, because there is material (P) in the closed region of low reaches (N) of transport cylinder low reaches blind end near discharge gate department and constantly extrudees to carry and pile up, has the clearance dead angle and can be more and more serious, can not automatic exhaust problem simultaneously, and can't be cleared up under the non-shut down condition.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a concrete batching conveyor, which solves the problem that the material caking exists in a downstream closed area (M) close to a discharge port at the downstream closed end of a conveying cylinder; meanwhile, the technical problems that materials are accumulated in a downstream closed end (N) close to the discharge port and cannot be cleaned under the non-stop condition can be solved.

In order to achieve the purpose, the invention provides a concrete batching conveyor, which comprises a conveying cylinder (1), a screw shaft (2) and a motor (3), wherein the motor (3) is connected with the screw shaft (2) and is used for driving the screw shaft (2) to rotate in the conveying cylinder (1), the two ends of the conveying cylinder (1) are respectively provided with a feeding hole (1-1) and a discharging hole (1-2), and the concrete batching conveyor is characterized in that:

the screw shaft (2) comprises a shaft lever (2-4), a forward screw blade (2-1), a dispersing paddle (2-2) and a reverse screw blade (2-3) are sequentially arranged on the shaft lever (2-4) along the conveying direction of materials, and the discharge port (1-2) corresponds to the dispersing paddle (2-2).

By adopting the scheme, when the screw shaft (2) rotates, the forward helical blade (2-1), the dispersing paddle (2-2) and the reverse helical blade (2-3) rotate simultaneously; the forward helical blade (2-1) can convey the upstream material entering the conveying cylinder from the feeding hole (1-1) to the downstream side; when the materials are conveyed to the inner end of the discharge port (1-2) of the conveying cylinder or the discharge area (M) of the inner side wall of the periphery of the discharge port, the stirring and dispersing paddle (2-2) rotates along with the screw shaft (2) to stir and loosen the materials conveyed by the forward screw blade (2-1) in the conveying cylinder, so that the blockage of the materials in the conveying cylinder (including the discharge area M and the N in the downstream closed area) caused by material caking is prevented, and the blockage of the materials in a falling channel when the materials are discharged from the discharge port (1-2) is also avoided. In addition, the reverse helical blade (2-3) also rotates along with the helical shaft (2), the conveying direction of the forward helical blade (2-1) is opposite to that of the reverse helical blade (2-3), and the reverse helical blade (2-3) can reversely convey (i.e. reversely push) the material (P) in the downstream closed end of the conveying cylinder in the downstream closed area (N) close to the discharge port towards the discharge area (M) so as to prevent the material from entering the downstream closed area (N), so that the material conveyed by the forward helical blade (2-1) can be completely discharged from the discharge port (1-2) at the discharge area (M), and the conveying stability and the metering correctness can be ensured; meanwhile, the automatic cleaning and discharging of the materials in the dead angle can be realized, and the problems that residual materials exist in the downstream closed area (N) and the accumulation amount is increased are solved.

Therefore, the technical problems that the screw shaft rotates in the conveying cylinder to push the materials to move and the materials are accumulated at the material discharging opening are solved, and the technical problems that the materials are continuously extruded and conveyed and are continuously accumulated and cannot be cleaned under the non-stop condition in the downstream closed end of the conveying cylinder in the downstream closed area close to the material discharging opening are also solved.

As a first preferred scheme, the dispersing paddles (2-2) comprise a plurality of first radial rods (2-21a) arranged on the circumferential direction of the shaft rod (2-4) and first stirring rods (2-22a) arranged on the first radial rods (2-21 a).

Preferably, said first stirring rods (2-22a) are distributed perpendicularly to the first radial rods (2-21 a).

Further, the first stirring rods (2-22a) on two adjacent first radial rods (2-21a) have a certain included angle and are not vertically distributed.

Further, the first stirring rods (2-22a) and the first radial rods (2-21a) are arranged at a certain included angle and are not vertically distributed.

As a second preferable scheme, the dispersing paddles (2-2) comprise a plurality of driving stirring sheets (2-21b) arranged on the circumferential direction of the shaft rod (2-4) and a second stirring rod (2-22b) arranged in the middle of the driving stirring sheets (2-21 b); the discharge port (1-2) is internally provided with a follow-up paddle (4), and the follow-up paddle (4) is stirred by a driving stirring sheet (2-21b) on the dispersing paddle (2-2) to rotate.

Preferably, the follow-up paddle (4) comprises a paddle shaft (4-1), a follow-up plectrum (4-2) and a third stirring rod (4-3); the paddle shaft (4-1) is parallel to the shaft lever (2-4) and is rotatably connected with the inner side wall of the discharge hole (1-2); the paddle shaft (4-1) is provided with a follow-up shifting piece (4-2), and the follow-up shifting piece (4-2) corresponds to the driving shifting piece (2-21 b); the third stirring rod (4-3) is arranged on the follow-up stirring sheet (4-2) or the paddle shaft (4-1).

Further, the follow-up plectrum (4-2) is provided with a plurality of pieces and is evenly distributed along the circumferential direction of the paddle shaft (4-1).

The invention has at least the following beneficial effects:

firstly, when the screw shaft rotates in the conveying cylinder to push the materials to move, the materials are stirred and loosened by the stirring paddles at the inner end of the discharge port of the conveying cylinder or in the discharge area of the inner side wall of the periphery of the conveying cylinder, so that caking can be prevented from forming in the materials, the materials in the conveying cylinder can smoothly enter the discharge port, cleaning is not needed, and series problems of large load, high noise, easy halt, excessive equipment abrasion, low service life, unstable conveying, inaccurate metering and the like can be prevented;

secondly, reverse helical blades are arranged in a downstream closed end of the conveying cylinder in a downstream closed area close to the discharge port, rotate along with the helical shaft and are opposite to the conveying direction of the forward helical blades; therefore, the materials in the discharging area of the material conveying device are prevented from being conveyed towards the downstream closed area, and meanwhile, the materials in the downstream closed area can be reversely conveyed towards the discharging area, so that the possible articles in the dead angle can be self-cleaned and discharged under the non-stop condition, and meanwhile, the accumulation is avoided;

thirdly, the follow-up paddle is driven by the dispersing paddle to rotate in a follow-up mode, so that the objects dispersed by the dispersing paddle can quickly enter the discharge port and can be quickly discharged from the discharge port, the materials are prevented from being blocked in the discharge area at the inner end of the discharge port of the conveying cylinder or on the inner side wall of the periphery of the discharge port and the discharge port, and the conveying stability and accuracy are guaranteed;

fourthly, the follow-up paddle and the dispersing paddle are driven by the same motor (namely a single motor) to work, so that linkage control is realized, and the working synchronism of the follow-up paddle and the dispersing paddle can be ensured; meanwhile, the transmission and driving mechanisms can be reduced, so that the cost is reduced, and the energy is saved.

Drawings

Fig. 1 is a schematic structural view of a conventional concrete batching conveyor.

FIG. 2 is a schematic diagram of a concrete batching conveyor according to the present invention in one embodiment.

Fig. 3 is an enlarged view of a in fig. 2.

FIG. 4 is a perspective view of a screw shaft according to a first embodiment of the present invention.

Fig. 5 is an enlarged view at B in fig. 4.

FIG. 6 is a partial perspective view of a screw shaft according to a second embodiment of the present invention.

FIG. 7 is a schematic view showing a partial structure of a concrete batching conveyor according to a third embodiment of the present invention.

FIG. 8 is a schematic view showing the structure of a concrete batching conveyor according to the fourth embodiment of the present invention.

Fig. 9 is an enlarged view at C in fig. 8.

FIG. 10 is a partial perspective view of a concrete batching conveyor according to the present invention in a fourth embodiment.

FIG. 11 is a partial schematic view of a concrete batching conveyor according to a fifth embodiment of the present invention.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

the first embodiment is as follows: referring to fig. 2-5, a concrete batching conveyor comprises a conveying cylinder 1, a screw shaft 2 and a motor 3, wherein the motor 3 is connected with the screw shaft 2 and is used for driving the screw shaft 2 to rotate in the conveying cylinder 1, and two ends of the conveying cylinder 1 are respectively provided with a feeding port 1-1 and a discharging port 1-2.

The screw shaft 2 comprises a shaft lever 2-4, a forward screw blade 2-1, a dispersing paddle 2-2 and a reverse screw blade 2-3 are sequentially arranged on the shaft lever 2-4 along the conveying direction of the material, and the discharge port 1-2 corresponds to the dispersing paddle 2-2 in position.

Specifically, the discharge port 1-2 is arranged on the side wall of the conveying cylinder 1 and is positioned right below the dispersing paddle 2-2.

When the invention works, the motor 3 is started, and the motor 3 drives the screw shaft 2 to rotate in the conveying cylinder 1. When the screw shaft 2 rotates, the forward screw blade 2-1, the dispersing propeller 2-2 and the reverse screw blade 2-3 rotate simultaneously; the forward helical blade 2-1 conveys the upstream material entering the conveying cylinder from the feed port 1-1 to the downstream side; when the materials are conveyed to the inner end of the discharge port 1-2 of the conveying cylinder or the discharge area M of the peripheral inner side wall of the discharge port, the materials conveyed by the forward spiral blade 2-1 can be stirred and loosened in the conveying cylinder due to the rotation of the stirring and loosening paddle 2-2 along with the spiral shaft 2, so that the blockage of the materials in the conveying cylinder, including the discharge area M and the N in the downstream closed area, caused by the caking of the materials is prevented, and the blockage of the materials in a falling channel is also prevented when the materials are discharged from the discharge port 1-2. In addition, the reverse helical blade 2-3 also rotates along with the helical shaft 2, and the forward helical blade 2-1 is opposite to the conveying direction of the reverse helical blade 2-3, the reverse helical blade 2-3 can convey the material P in the downstream closed end of the conveying cylinder in the downstream closed area N close to the discharge port in a reverse direction towards the discharge area M, namely push back, so as to prevent the material from entering the downstream closed area N, thus not only ensuring that the material conveyed by the forward helical blade 2-1 can be discharged from the discharge port 1-2 in the discharge area M, but also ensuring the stability of conveying and the correctness of metering; meanwhile, the automatic cleaning and discharging of the materials in the dead angle can be realized, and the problems that the residual materials exist in the N in the downstream closed area and the accumulation amount is increased are solved.

Therefore, the invention not only solves the technical problems that the screw shaft rotates in the conveying cylinder to push the material to move and the material is deposited at the material outlet, but also solves the technical problems that the material is continuously extruded and conveyed and is continuously accumulated in the downstream closed end of the conveying cylinder in the downstream closed area close to the material outlet and cannot be cleaned under the non-stop condition.

In the present embodiment, referring to fig. 2-5, the dispersing blades 2-2 comprise a plurality of first radial rods 2-21a disposed on the circumference of the shaft 2-4 and first stirring rods 2-22a disposed on the first radial rods 2-21 a.

Preferably, said first stirring rods 2-22a are distributed perpendicularly to the outer or middle portion of the first radial rods 2-21 a.

In this embodiment, the first stirring rods 2-22a are arranged in parallel with the shaft 2-4.

Example two: this embodiment is substantially the same as the first embodiment, except that: referring to fig. 6, in the present embodiment, the first stirring rods 2-22a on two adjacent first radial rods 2-21a have a certain included angle S1 and are not vertically distributed. Therefore, the first stirring rods 2-22a on the two adjacent first radial rods 2-21a can generate acting force in different directions and multiple directions when being stirred, the stirring efficiency can be improved, materials can be discharged in time in a limited stirring space and path time, and the problems of aggregation and blockage can be further solved.

Example three: this embodiment is substantially the same as the first embodiment, except that: referring to fig. 7, in the present embodiment, the first stirring rods 2-22a and the first radial rods 2-21a have an included angle S2 and are not vertically distributed. Therefore, the first stirring rod 2-22a and the first radial rod 2-21a can generate acting force which cannot be directional and multidirectional when being stirred and dispersed, the stirring and dispersing efficiency can be improved, materials can be more quickly discharged into the discharge port in limited stirring and dispersing space and path time, and the problems of aggregation and blockage can be further solved.

Further, a plurality of the first stirring rods 2 to 22a are provided on each of the first radial rods 2 to 21 a.

Example four: this embodiment is substantially the same as the other embodiments described above, except that: the specific structures adopted by the dispersing paddles 2-2 are different.

Referring to fig. 8-10, in the present embodiment, the dispersing paddles 2-2 include a plurality of driving paddles 2-21b disposed on the circumference of the shaft 2-4 and a second stirring rod 2-22b disposed in the middle of the driving paddles 2-21 b.

Specifically, the second stirring rods 2-22b include second cross rods and struts provided on the second cross rods.

Preferably, the middle part of the second cross rod is crossed and fixed with the middle part of the active shifting piece 2-21b, and two ends of the second cross rod are provided with supporting rods.

In addition, a follow-up paddle 4 is arranged in the discharge port 1-2, and the follow-up paddle 4 is stirred by a driving stirring sheet 2-21b on the dispersing paddle 2-2 to rotate.

Referring to fig. 8-10, in the present embodiment, the follower paddle 4 includes a paddle shaft 4-1, a follower paddle 4-2 and a third stirring rod 4-3; the paddle shaft 4-1 is parallel to the shaft lever 2-4 and is rotatably connected with the inner side wall of the discharge port 1-2; the paddle shaft 4-1 is provided with a follow-up shifting piece 4-2, and the follow-up shifting piece 4-2 corresponds to the driving shifting piece 2-21b in position; the third stirring rod 4-3 is provided on the follower paddle 4-2 (see fig. 8-10).

Specifically, the follow-up poking pieces 4-2 can be arranged in a plurality and are uniformly distributed along the circumferential direction of the paddle shaft 4-1.

Referring to fig. 8-10, when the dispersing paddle 2-2 rotates, the driving paddle 2-21b rotates to stir (or touch) the follower paddle 4-2 of the follower paddle 4, and further drives the paddle shaft 4-1 and the third stirring rod 4-3 to rotate to accelerate the blanking. Therefore, the invention can drive the follow-up paddle to rotate in a follow-up manner through the dispersing paddle, so that the objects dispersed by the dispersing paddle can quickly enter the discharge port and be quickly discharged from the discharge port, thereby not only preventing the materials from being blocked in the discharge port inner end of the conveying cylinder or the discharge area of the peripheral inner side wall of the conveying cylinder and the discharge port, but also ensuring the stability and the accuracy of the whole conveying process.

Referring to fig. 8-10, in addition, the following paddle and the dispersing paddle of the invention are driven by the same motor (i.e. a single motor) to work, so that linkage control is realized, and the working synchronism of the following paddle and the dispersing paddle can be ensured; meanwhile, the transmission and driving mechanisms can be reduced, so that the cost is reduced, and the energy is saved.

Further, the follow-up plectrum 4-2 is provided with a plurality of pieces and is evenly distributed along the circumferential direction of the paddle shaft 4-1. Example five: this embodiment is substantially the same as the fourth embodiment, except that: the following paddles 4 have different specific structures.

Referring to fig. 11, in the present embodiment, the follower paddle 4 includes a paddle shaft 4-1, a follower paddle 4-2 and a third stirring rod 4-3; the paddle shaft 4-1 is parallel to the shaft lever 2-4 and is rotatably connected with the inner side wall of the discharge port 1-2; the paddle shaft 4-1 is provided with a follow-up shifting piece 4-2, and the follow-up shifting piece 4-2 corresponds to the driving shifting piece 2-21b in position; the third stirring rod 4-3 is provided on the paddle shaft 4-1 (see fig. 11).

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.