CN219620388U

CN219620388U - Powdery material storage and conveying device with X-axis and Y-axis spiral conveying function

Info

Publication number: CN219620388U
Application number: CN202320114733.2U
Authority: CN
Inventors: 皇甫建红; 王明辉; 李竹
Original assignee: Dagang Holding Group Co ltd
Current assignee: Dagang Holding Group Co ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-09-01
Anticipated expiration: 2033-01-18

Abstract

The utility model provides a powdery material storage and conveying device with X-axis and Y-axis spiral conveying, which is used for solving the technical problems of small material loading, poor sealing performance and the like of the existing powdery material conveying device. The conveying device comprises a bin and a conveying unit positioned at a discharge hole at the bottom of the bin, wherein the conveying unit comprises an X-axis conveying component and a Y-axis conveying component, the X-axis conveying component is positioned at the inner side of the discharge hole at the bottom of the bin and is connected with the side wall of the bin, and the Y-axis conveying component is positioned at the outer side of the discharge hole at the bottom of the bin and is vertical to the X-axis conveying component; meanwhile, as the Y-axis spiral component is additionally arranged at the discharge hole, the included angle from the outlet of the X-axis spiral component to the outlet of the Y-axis spiral material is reduced, so that the possibility of powder material to be blown out is prevented, and the sealing performance of the conveying device is improved.

Description

Powdery material storage and conveying device with X-axis and Y-axis spiral conveying function

Technical Field

The utility model relates to a powdery material conveying device, in particular to a powdery material storage and conveying device with X-axis and Y-axis spiral conveying.

Background

The powdery material is used as a main constituent material of concrete, and is generally conveyed into stirring equipment through a powdery material conveying mechanism in the process of mixing and stirring the concrete, and the conveying mode is widely applied to road construction and construction engineering. The existing conveying device is divided into two types, one is that an X-axis screw is arranged below a storage bin, a discharge hole is arranged in the middle of the X-axis screw, the sealing performance of the conveying device is poor, and the applicability of the conveying device to powdery materials is low; in addition, an X-axis screw is arranged below the storage bin, and a large cone is additionally arranged at a discharge hole of the X-axis screw, so that the tightness of the device is improved, but the device occupies a large space of the storage bin, so that the loading capacity of materials is reduced, and the efficient storage and the efficient conveying of powdery materials are not facilitated.

Disclosure of Invention

The utility model aims to provide a powdery material storage and conveying device with X-axis and Y-axis spiral conveying, which is used for solving the technical problems of small material loading capacity, poor sealing performance and the like of the existing powdery material conveying device.

In order to achieve the above object, the technical solution of the present utility model is as follows:

the utility model provides a powdery material storage and conveyor with X axle, Y axle screw conveying, includes feed bin and is located the delivery unit of feed bin bottom discharge gate department, its special character lies in:

the conveying unit comprises an X-axis conveying assembly and a Y-axis conveying assembly;

the X-axis conveying assembly is positioned at the inner side of the discharge hole at the bottom of the storage bin and is connected with the side wall of the storage bin; the X-axis conveying assembly is used for conveying the powdery material to a discharge hole at the bottom of the storage bin;

the Y-axis conveying assembly is positioned at the outer side of the discharge hole at the bottom of the storage bin and is vertical to the X-axis conveying assembly; the Y-axis conveying assembly comprises a shell, a Y-axis spiral shaft and a plurality of pitch forward spirals, wherein the Y-axis spiral shaft is arranged in the shell, and the forward spirals are fixed on the Y-axis spiral shaft; the Y-axis spiral shaft is connected with the shell through a bearing; one end of the shell is radially connected with a discharge hole at the bottom of the storage bin to form a through hole, and the other end of the shell is radially provided with a Y-axis discharge hole;

one end part of the Y-axis spiral shaft, which is close to the intersecting opening, is connected with a first power input device and is used for driving the Y-axis spiral shaft to rotate, and forward spirals with a plurality of pitches are used for conveying powdery materials from the intersecting opening to the Y-axis discharge opening.

Further, the X-axis conveying assembly comprises an X-axis screw shaft, a plurality of positive screws with pitches respectively arranged on one end of the X-axis screw shaft and a plurality of negative screws with pitches on the other end of the X-axis screw shaft; the two end parts of the X-axis screw shaft are connected with the side wall of the storage bin through end flanges and bearings; the end part of any one end of the X-axis screw shaft is connected with a second power input device and is used for driving the X-axis screw shaft to rotate; multiple pitch positive spirals and multiple pitch negative spirals are used to transport the powder material from the two ends of the X-axis spiral shaft to the middle.

Further, the positive spiral and the negative spiral are respectively welded on an X-axis spiral shaft; the positive spiral is welded on the Y-axis spiral shaft.

Further, an included angle between a connecting line from a point A at the connection position of the bin discharge hole and the shell to a point B at the connection position of the Y-axis discharge hole and the shell and the central axis of the Y-axis screw shaft is alpha, wherein the point A is positioned at one side of the bin discharge hole far away from the first power input device, the point B is positioned at one side of the Y-axis discharge hole close to the first power input device, and the connecting line of the point A and the point B is intersected with the central axis of the Y-axis screw shaft; the included angle alpha is smaller than the dynamic repose angle of the conveyed powdery material.

Further, the included angle alpha is 25-28 degrees.

Further, the first and second power input devices are motors.

Further, the first and second power input devices may also be hydraulic motors and their mechanical transmissions.

Compared with the prior art, the utility model has the beneficial effects that:

1. the conveying device comprises a bin and a conveying unit positioned at a discharge hole of the bin, wherein the conveying unit comprises an X-axis conveying component and a Y-axis conveying component, the X-axis conveying component is positioned at the inner side of the discharge hole at the bottom of the bin and is connected with the side wall of the bin, the Y-axis conveying component is positioned at the outer side of the discharge hole at the bottom of the bin and is vertical to the X-axis conveying component, and the whole structure of the conveying device is compact and does not occupy the inner space of the bin, so that the loading capacity of powdery materials is improved; the spiral mode is arranged along the X axis and the Y axis, so that impact kinetic energy of the powdery material in the process of adding can be effectively reduced, and the possibility of exposing the powdery material is further reduced; meanwhile, as the Y-axis spiral component is additionally arranged at the discharge hole, the included angle from the outlet of the X-axis spiral component to the outlet of the Y-axis spiral material is reduced, so that the possibility of powder material to be blown out is prevented, and the sealing performance of the conveying device is improved.

2. The included angle between the connecting line of the point A at the joint of the bin discharge hole and the shell and the point B at the joint of the Y-axis discharge hole and the shell and the central axis of the Y-axis screw shaft is alpha, wherein the point A is positioned at one side of the bin discharge hole far away from the first power input device, the point B is positioned at one side of the Y-axis discharge hole close to the first power input device, the connecting line of the point A and the point B is intersected with the central axis of the Y-axis screw shaft, the included angle alpha is smaller than the dynamic repose angle of the conveyed powdery material, and the included angle is generally smaller than 25-28 degrees, so that the connecting line is suitable for conveying the powdery material in common use.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a right side view of fig. 1.

The reference numerals are as follows:

the device comprises a 1-bin, a 2-X axis conveying component, a 21-X axis screw shaft, a 22-positive screw, a 23-negative screw, a 3-Y axis conveying component, a 31-shell, a 32-Y axis screw shaft, a 33-positive screw, a 34-Y axis discharge hole, a 4-first power input device, a 5-second power input device, a 6-end flange and a 7-bearing.

Detailed Description

The technical scheme of the present utility model will be fully described in detail below with reference to the accompanying drawings and the specific embodiments. It should be noted that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and 2, the utility model provides a powder material storage and conveying device with X-axis and Y-axis spiral conveying, which comprises a storage bin 1 and a conveying unit positioned at a discharge hole at the bottom of the storage bin 1, wherein the conveying unit comprises an X-axis conveying assembly 2 and a Y-axis conveying assembly 3. The X-axis conveying component 2 is positioned at the inner side of a discharge hole at the bottom of the storage bin 1 and is connected with the side wall of the storage bin 1; the Y-axis conveying component 3 is positioned outside a discharge hole at the bottom of the storage bin 1 and is vertical to the X-axis conveying component 2.

As shown in fig. 1, the X-axis transport assembly 2 includes an X-axis screw shaft 21, a plurality of pitch positive screws 22 and a plurality of pitch negative screws 23 respectively provided on the X-axis screw shaft 21. The two end parts of the X-axis screw shaft 21 are connected with the side wall of the storage bin 1 through the end flange 6 and the bearing 7, and the end flange 6 and the bearing 7 are positioned outside the side wall of the storage bin. The end of either end of the X-axis screw shaft 21 is connected to a second power input device 5 for driving the rotation of the X-axis screw shaft 21, and the second power input device 5 is typically an electric motor or a hydraulic motor and a mechanical transmission device thereof.

In this embodiment, the positive screw 22 and the negative screw 23 are respectively welded on the X-axis screw shaft 21, the second power input device 5 drives the X-axis screw shaft 21 to rotate, and the powdery material is conveyed from both ends of the X-axis screw shaft 21 to the middle through the positive screw 22 and the negative screw 23 and conveyed into the Y-axis conveying assembly 3 through the bottom discharge port of the silo 1. The powdery material in this embodiment is generally cement or fly ash, wherein cement is a typical powdery material, and has the advantages of fine granularity, good fluidity, small internal friction and small repose angle. The static angle of repose of cement is 35-40 degrees, and the dynamic angle of repose is 25-28 degrees. The angle of repose is the angle between the inclined plane and the horizontal plane formed when the cement fine powder is naturally piled up, the value of the angle represents the fluidity of the cement fine powder, the smaller the value of the angle represents the stronger the fluidity of the cement fine powder, and the smaller the friction among the cement fine powder particles is, so that the requirement on the sealing performance of the device is high when the cement is stored and conveyed by screw, and the conveying device can meet the requirement.

As shown in fig. 2, the Y-axis transporting assembly 3 includes a housing 31, a Y-axis screw shaft 32 provided in the housing 31, and a plurality of pitch forward screws 33 fixed to the Y-axis screw shaft 32, the Y-axis screw shaft 32 being connected to the housing 31 through bearings 7, wherein the bearings 7 are located outside the housing 31. One end of the shell 31 is connected with a discharge hole at the bottom of the storage bin 1 along the radial direction and forms a through hole, one end of the Y-axis screw shaft 32 close to the through hole is connected with a first power input device 4 for driving the Y-axis screw shaft 32 to rotate, and the first power input device 4 is generally a motor or a hydraulic motor, a mechanical transmission device thereof and the like. The other end of the shell 31 is provided with a Y-axis discharge hole 34 along the radial direction, and the powdery material in the storage bin 1 finally flows out through the Y-axis discharge hole 34 to be utilized. The utility model adopts a mode of arranging spirals along the X axis and the Y axis, has compact overall structure and does not occupy the internal space of the stock bin, and can effectively reduce the impact kinetic energy of the powdery material in the process of adding and installing, thereby reducing the possibility of exposing the powdery material; meanwhile, as the Y-axis output assembly 3 is additionally arranged at the discharge hole, the included angle from the outlet of the X-axis output assembly 2 to the Y-axis discharge hole 34 is reduced, so that the possibility of powder material to be blown out is prevented, and the tightness of the conveying device is improved.

In this embodiment, the included angle between the connecting line from the point a at the connection position of the discharge hole of the storage bin 1 and the shell 31 to the point B at the connection position of the Y-axis discharge hole 34 and the shell 31 and the central axis of the Y-axis screw shaft 32 is α, where the point a is located on the side of the discharge hole of the storage bin 1 away from the first power input device 4, the point B is located on the side of the Y-axis discharge hole 34 near the first power input device 4, and the connecting line between the point a and the point B intersects with the central axis of the Y-axis screw shaft 32, where the included angle α is smaller than the dynamic repose angle of the conveyed powdery material, typically 25 ° to 28 ° (i.e., the dynamic repose angle of cement is smaller than that of other powdery materials), so as to meet the requirement of tightness.

While embodiments of the present utility model have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a powdery material storage and conveyor with X axle, Y axle screw conveying, includes feed bin (1) and is located the conveying unit of feed bin (1) bottom discharge gate department, its characterized in that:

the conveying unit comprises an X-axis conveying assembly (2) and a Y-axis conveying assembly (3);

the X-axis conveying assembly (2) is positioned at the inner side of a discharge hole at the bottom of the storage bin (1) and is connected with the side wall of the storage bin (1); the X-axis conveying component (2) is used for conveying powdery materials to a discharge hole at the bottom of the storage bin (1);

the Y-axis conveying assembly (3) is positioned outside a discharge hole at the bottom of the storage bin (1) and is vertical to the X-axis conveying assembly (2); the Y-axis conveying assembly (3) comprises a shell (31), a Y-axis screw shaft (32) arranged in the shell (31) and a plurality of positive screws (33) with pitches fixed on the Y-axis screw shaft (32); the Y-axis screw shaft (32) is connected with the shell (31) through a bearing; one end of the shell (31) is connected with a discharge hole at the bottom of the storage bin (1) along the radial direction to form a through hole, and the other end of the shell is provided with a Y-axis discharge hole (34) along the radial direction;

one end part of the Y-axis spiral shaft (32) close to the intersecting opening is connected with a first power input device (4) and used for driving the Y-axis spiral shaft (32) to rotate, and a plurality of positive spirals (33) with pitches are used for conveying powdery materials from the intersecting opening to a Y-axis discharge opening (34).

2. The powder material storage and delivery device with X-axis, Y-axis screw delivery of claim 1, wherein:

the X-axis conveying assembly (2) comprises an X-axis screw shaft (21), a plurality of positive screws (22) with pitches and a plurality of negative screws (23) with pitches, which are respectively arranged on one end of the X-axis screw shaft (21); the two end parts of the X-axis screw shaft (21) are connected with the side wall of the storage bin (1) through an end flange (6) and a bearing (7); the end part of any one end of the X-axis screw shaft (21) is connected with a second power input device (5) and is used for driving the X-axis screw shaft (21) to rotate, and a plurality of positive screws (22) with pitches and a plurality of negative screws (23) with pitches are used for conveying powdery materials from the two ends of the X-axis screw shaft (21) to the middle.

3. The powder material storage and delivery device with X-axis, Y-axis screw delivery of claim 2, wherein:

the positive screw (22) and the negative screw (23) are respectively welded on the X-axis screw shaft (21);

the forward screw (33) is welded on the Y-axis screw shaft (32).

4. A powder material storage and delivery device with X-axis, Y-axis screw delivery as claimed in claim 3, wherein:

the connecting line from the point A at the connection position of the discharge hole of the storage bin (1) and the shell (31) to the point B at the connection position of the Y-axis discharge hole (34) and the shell (31) has an included angle alpha with the central axis of the Y-axis screw shaft (32), wherein the point A is positioned at one side of the discharge hole of the storage bin (1) far away from the first power input equipment (4), the point B is positioned at one side of the Y-axis discharge hole (34) near the first power input equipment (4), and the connecting line of the point A and the point B is intersected with the central axis of the Y-axis screw shaft (32); the included angle alpha is smaller than the dynamic repose angle of the conveyed powdery material.

5. The powder material storage and delivery device with X-axis and Y-axis screw delivery according to claim 4, wherein:

the included angle alpha is 25-28 degrees.

6. The powder material storage and delivery device with X-axis, Y-axis screw delivery of claim 5, wherein:

the first power input device (4) and the second power input device (5) are motors.

7. The powder material storage and delivery device with X-axis, Y-axis screw delivery of claim 5, wherein:

the first power input device (4) and the second power input device (5) are hydraulic motors and mechanical transmission devices thereof.