CN110357748B

CN110357748B - Internal spiral quantitative feeding device

Info

Publication number: CN110357748B
Application number: CN201910725981.9A
Authority: CN
Inventors: 孙晓朋; 王勇; 刘晶; 陈松; 谢中元; 秦能
Original assignee: Xian Modern Chemistry Research Institute
Current assignee: Xian Modern Chemistry Research Institute
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2021-06-15
Anticipated expiration: 2039-08-07
Also published as: CN110357748A

Abstract

The invention belongs to the technical field of explosive charging equipment, and particularly relates to an internal spiral quantitative charging device for uniformly conveying explosive powder. The feeding device comprises a support, a motor mounting seat, a motor, a speed reducer, a rear bearing, a storage bin cover, a charging barrel, a front bearing and a striker plate. The device utilizes the spiral groove on the inner wall of the charging barrel, realizes the quantitative forward conveying of the materials when the charging barrel rotates by means of the gravity of the materials, and controls the forward conveying speed of the materials by controlling the rotating speed of the charging barrel, thereby avoiding the mechanical stimulation of the feeding device on the extrusion, the impact and the like of the materials and improving the safety; the feeding speed is controlled by controlling the rotating speed of the charging barrel, and is irrelevant to the amount of materials in the storage bin; the problem of bridging of materials in the existing feeding device bin can be avoided.

Description

Internal spiral quantitative feeding device

Technical Field

The invention belongs to the technical field of explosive charging equipment, and particularly relates to an internal spiral quantitative charging device for uniformly conveying explosive powder.

Background

In the production process of explosives and powders, various powdery explosives and powders are often required to be conveyed at a constant speed and added into processing equipment, so that the required products can be produced according to the proportion of each component in the formula. In the current explosive production industry, the common powder explosive feeding modes comprise single-screw feeding, double-screw feeding, vibration feeding and the like. Raw materials used in the explosive production industry mostly have high mechanical sensitivity, and can be dangerous when meeting certain stimulation such as extrusion, friction, impact and the like, but the feeding technology and the device adopted at present have certain mechanical stimulation to materials, so that the potential safety hazard is large.

Disclosure of Invention

Technical problem to be solved

The invention provides an internal spiral quantitative feeding device, which aims to solve the technical problems of meeting the quantitative feeding requirement of powder in the production process of explosives and powders, reducing the mechanical stimulation to the powder and improving the safety of the feeding process.

(II) technical scheme

In order to solve the technical problem, the invention provides an internal spiral quantitative feeding device which comprises a bracket, a motor mounting seat, a motor, a speed reducer, a rear bearing, a bin cover, a charging barrel, a front bearing and a striker plate, wherein the motor mounting seat is arranged on the bracket; the charging barrel is divided into a conical section and a straight section, and a plurality of spiral grooves are formed in the inner wall of the charging barrel; the conical section of the charging barrel is fixedly connected with the bin, and the bin is arranged on the bracket through a rear bearing; the straight section of the charging barrel is arranged on the bracket through a front bearing; the motor and the speed reducer are arranged on the bracket through the motor mounting seat, are connected with the bin, and drive the bin and the charging barrel to rotate together through the motor and the speed reducer; the bin cover is connected with the bin; the material blocking plate is arranged at an outlet of the bin and connected with the spiral groove in the inner wall of the material barrel to control the amount of materials entering the material barrel from the bin in the feeding process.

(III) advantageous effects

The invention provides an internal spiral quantitative feeding device which comprises a support, a motor mounting seat, a motor, a speed reducer, a rear bearing, a storage bin cover, a charging barrel, a front bearing and a material baffle plate. The device utilizes the spiral groove on the inner wall of the charging barrel, realizes the quantitative forward conveying of the materials when the charging barrel rotates by means of the gravity of the materials, and controls the forward conveying speed of the materials by controlling the rotating speed of the charging barrel, thereby avoiding the mechanical stimulation of the feeding device on the extrusion, the impact and the like of the materials and improving the safety; the feeding speed is controlled by controlling the rotating speed of the charging barrel, and is irrelevant to the amount of materials in the storage bin; the problem of bridging of materials in the existing feeding device bin can be avoided.

Compared with the prior art, the invention has the main technical innovation that:

1. the material conveying is realized by the material sliding along a plurality of spiral grooves on the inner wall of the charging barrel under the action of gravity, and the feeding speed can be controlled by controlling the rotating speed of the charging barrel and the depth of the spiral grooves;

2. the charging barrel is divided into a conical section and a straight section, spiral grooves are formed in the charging barrel, and a material baffle plate is arranged, so that the amount of materials entering the spiral grooves is kept unchanged no matter how much materials are in the charging bin;

3. the feed bin and the charging barrel rotate together, so that the materials are continuously rolled in the feed bin, and the bridging problem is avoided.

Drawings

FIG. 1 is a schematic structural view of an internal spiral quantitative charging device according to an embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of the internal spiral quantitative charging device according to the embodiment of the invention.

In the figure, 1, a support, 2, a motor mounting seat, 3, a motor and a speed reducer, 4, a rear bearing, 5, a bin, 6, a bin cover, 7, a charging barrel, 8, a front bearing and 9, a striker plate.

Detailed Description

In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.

The present embodiment provides an internal spiral quantitative charging device, which has a structure as shown in fig. 1. The device comprises a support 1, a motor mounting seat 2, a motor and speed reducer 3, a rear bearing 4, a bin 5, a bin cover 6, a charging barrel 7, a front bearing 8 and a striker plate 9.

Wherein, feed cylinder 7 divide into conic section and straight section, and the inner wall of feed cylinder 7 all is provided with many spiral grooves. The conical section of the charging barrel 7 is fixedly connected with the bin 5 through a bolt, and the bin 5 is installed on the bracket 1 through the rear bearing 4; the straight section of the cartridge 7 is mounted on the bracket 1 by a front bearing 8.

The motor and speed reducer 3 is installed on the support 1 through the motor installation seat 2, is connected with the material bin 5, and drives the material bin 5 to rotate together with the material bin 7 through the motor and speed reducer 3.

The silo cover 6 is connected with the silo 5. Set up striker plate 9 in the exit of feed bin 5 to striker plate 9 links to each other with the inner wall spiral slot of feed cylinder 7, as shown in fig. 2 for the control is reinforced the in-process and is got into the material volume in the feed cylinder 7 by feed bin 5, reduces the influence of material volume in the feed bin to feed speed, realizes the equivalent and carries.

The working principle of the internal spiral quantitative feeding device is as follows:

during the use, pour the material into feed bin 5 in, cover feed bin lid 6, starter motor and speed reducer 3, it is rotatory together to drive feed bin 5 and feed cylinder 7, the material slides along many spiral grooves of 7 inner walls of feed cylinder under the action of gravity, thereby realize the forward transport of material, and can control feed rate through the quantity and the degree of depth control of the rotational speed of control feed cylinder 7 and inside spiral groove, thereby avoid mechanical stimulation such as extrusion, striking of feeding in-process to the material.

In addition, in order to guarantee that the flow in the charging process is even, the charging barrel 7 is divided into a conical section and a straight section, a material baffle 9 is arranged at an outlet of the storage hopper 5, the material quantity of the material entering the straight section from the conical section of the charging barrel 7 is controlled under the action of the material baffle 9, the material quantity is kept consistent, and quantitative charging of the material is achieved through the rotating speed of the charging barrel 7. When the material in the bin 5 is more, the material baffle 9 reduces the amount of the material entering the groove of the straight section of the charging barrel 7, and when the material in the bin 5 is less, the groove of the conical section of the charging barrel 7 can convey the material to the straight section, so that the feeding speed is kept unchanged; in the feeding process, the feed bin 5 and the charging barrel 7 rotate simultaneously, so that materials are continuously rolled in the feed bin 5, and the problem of bridging caused by accumulation of the materials is avoided. Therefore, in the use process, quantitative feeding of materials can be realized only by controlling the rotating speed of the charging barrel 7, and the feeding safety is ensured.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An internal spiral quantitative feeding device is characterized by comprising a support, a motor mounting seat, a motor, a speed reducer, a rear bearing, a bin cover, a charging barrel, a front bearing and a striker plate; the charging barrel is divided into a conical section and a straight section, and a plurality of spiral grooves are formed in the inner wall of the charging barrel; the conical section of the charging barrel is fixedly connected with the bin, and the bin is mounted on the bracket through the rear bearing; the straight section of the charging barrel is arranged on the bracket through the front bearing; the motor and the speed reducer are arranged on the bracket through the motor mounting seat, are connected with the bin, and drive the bin and the charging barrel to rotate together through the motor and the speed reducer; the bin cover is connected with the bin; the material blocking plate is arranged at an outlet of the bin and connected with the spiral groove of the inner wall of the material barrel to control the amount of materials entering the material barrel from the bin in the feeding process.