Material taking spiral device of stock bin

Abstract

The utility model discloses a material taking screw device of a stock bin. The material taking screw device comprises a material taking bin, a material taking screw, a bearing seat and a gear motor, the top face of the material taking bin is a feeding port, and the bottom face of the material taking bin is provided with a discharging port. The material taking screw transversely penetrates through the material taking bin, the two ends of the material taking screw are installed on the bearing seats, and the material taking screw comprises a screw rod part and an extending rod part. Spiral blades are welded on the surface of the spiral rod part, the diameter and the screw pitch are gradually increased along the feeding direction, and an extension rod part is positioned at the tail end of the feeding direction and is not provided with the spiral blades; the gear motor is connected with the front end of the screw rod part through a coupler and drives the screw rod part to rotate. According to the scheme, by adjusting the spiral blade structure, discharging of the spiral conveyor is more uniform, the situation that materials are squeezed and cannot be taken is avoided, power consumption of equipment is reduced, and then the equipment cost and the operation cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to power plant feeding equipment technical field especially relates to a material bin material taking screw device. BACKGROUND

[0002] In industrial production, the material taking link of the material bin widely applies the screw conveyor to convey material.

[0003] First, the material conveying uniformity is poor. The spiral blade structure design of the traditional screw conveyor is more conventional, in the material conveying process, the material is prone to uneven distribution, leading to the discharge not smooth. Often appear part of the material is over-pressed, and another part of the area is not taken to the phenomenon of material, which not only affects the production efficiency, but also may lead to unstable product quality.

[0004] Second, the power consumption is higher. Because the material conveying is uneven, to ensure a certain discharge amount, the equipment often needs higher power operation, thereby increasing the energy cost. At the same time, high power consumption operation will also accelerate the wear and tear of the equipment, shorten the service life of the equipment, further increase the equipment cost.

[0005] Third, the equipment operation cost is high. The material is squeezed and not taken to the material, so that the equipment needs frequent maintenance and debugging, increases the labor cost and downtime, leads to the overall operation cost is higher.

[0006] In summary, the traditional material bin material taking screw conveyor has obvious defects in material conveying uniformity, power consumption and operation cost, and needs to be improved. CONTENT OF THE UTILITY MODEL

[0007] In view of the problems existing in the prior art, the utility model aims at: a kind of material bin material taking screw device is provided, by adjusting spiral blade structure, make screw conveyor discharge more uniform, avoid material to be squeezed and not taken to the material, reduce equipment power consumption, and then cut down equipment cost and operation cost.

[0008] The technical scheme adopted by the utility model to solve its technical problems is:

[0009] The silo material taking screw device comprises a material taking silo, a material taking screw, a bearing seat and a speed reducer motor; the material taking silo is provided with an inlet at the top surface and an outlet at one end of the bottom surface; the material taking screw is arranged in the lower cavity of the material taking silo and penetrates the wall to be installed on the bearing seat at both ends; the material taking screw comprises a screw rod part and an extension rod part, the screw rod part is provided with screw blades, the diameters and pitches of the screw blades are increased step by step along the feeding direction, the extension rod part is located at the end along the feeding direction and is not provided with screw blades; the speed reducer motor is connected with the front end of the screw rod part of the material taking screw through a shaft coupling to drive the rotation.

[0010] Further preferred technical solutions, the material taking silo is provided with a plurality of material taking screws arranged side by side, and the material taking screws are equidistantly arranged, and the screw blades of all the material taking screws are consistent in rotation direction.

[0011] Further preferred technical solutions, the speed reducer motor is provided with a plurality of speed reducer motors corresponding to the material taking screws.

[0012] Further preferred technical solutions, the material taking silo is provided with an axle seat boss at both sides, and the bearing seat is fixed on the axle seat boss.

[0013] Further preferred technical solutions, the speed reducer motor is fixed on an adjustable height motor base to ensure coaxiality of the transmission shaft.

[0014] Further preferred technical solutions, the diameters of the screw blades of the material taking screw are provided with four step increments, which are 400mm, 430mm, 460mm and 500mm.

[0015] Further preferred technical solutions, the pitches of the screw blades of the material taking screw are provided with four step increments, which are 300mm, 350mm, 400mm and 450mm.

[0016] Further preferred technical solutions, the material taking silo comprises a plurality of supporting columns to keep the outlet of the material taking silo spaced from the ground and facilitate the butt joint with the lower equipment.

[0017] The beneficial effects of the utility model are:

[0018] 1. Good discharge uniformity: the structure of the screw blade is innovatively adjusted, the distance between the screw blades is gradually increased along the discharge direction, the diameter of the blade is also gradually increased, the material can be uniformly and continuously conveyed to the discharge outlet, and the problems that the material is squeezed and cannot be taken in the traditional screw conveyor are effectively solved.

[0019] 2. Significant energy saving effect: the optimized structure of the screw blade reduces the unreasonable extrusion of the material in the conveying process, reduces the additional energy consumption caused by poor conveying, and significantly reduces the overall power consumption of the equipment.

[0020] 3. The cost is reduced obviously: the power consumption reduction directly reduces the energy consumption cost, and the equipment wear and tear is reduced due to the reduction of material conveying problems, the maintenance and debugging frequency is reduced, and then the equipment cost and operation cost are reduced, and the economic benefit is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic diagram of the utility model.

[0022] Figure 2 It is Figure 1 The longitudinal section structure schematic diagram of A in the figure.

[0023] In the figure: 1-take material bin, 2-take material screw, 3-bearing seat, 4-reduction motor, 11-shaft seat boss, 12-supporting column, 21-spiral rod part, 22-extension rod part, 23-spiral blade, 41-coupling, 42-motor base, 101-feed inlet, 102-discharge outlet. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] I. Overall structure description

[0026] As Figure 1 And 2 The utility model discloses a material bin take material screw device, and specifically includes the following structure:

[0027] The take material bin 1: the top surface is open as the feed inlet 101, and the bottom surface one end is equipped with the discharge outlet 102;The take material bin 1 both sides are equipped with the shaft seat boss 11, and its bottom is fixed through a plurality of supporting columns 12, makes the discharge outlet 102 with ground and keeps the interval, is convenient for and links with the lower equipment.

[0028] The take material screw 2: it is located at the bottom of the take material bin 1, and is transversely arranged in the take material bin 1, and includes spiral rod part 21 and extension rod part 22. The surface of spiral rod part 21 is welded with spiral blade 23, and the diameter and the pitch are increased in 4 stages along the feeding direction (indicated by arrow M). Specifically, the spiral blade diameter is 400mm, 430mm, 460mm and 500mm, and the pitch is 300mm, 350mm, 400mm and 450mm2. The extension rod part 22 is located at the end of the feeding direction, and has no spiral blade structure.

[0029] Bearing seat 3: mounted on the shaft seat boss 11, used to support the two ends of the screw 2 shaft.

[0030] Speed reducer motor 4: connected with the front end of the screw rod 21 through the shaft coupling 41, the speed reducer motor 4 is fixed on the adjustable height motor base 42, which ensures the coaxiality of the transmission shaft.

[0031] Preferred solution:

[0032] The screw 2 includes multiple, and is arranged horizontally and equidistantly, and the rotation direction of all screw blades 23 is consistent.

[0033] Each screw 2 is provided with an independent speed reducer motor 4, and is synchronously driven.

[0034] II. Technical effect corresponding design explanation

[0035] The diameter and pitch of the screw blade increase step by step: as the material is transported to the discharge port 102, the diameter and pitch of the screw blade 23 increase step by step, which can gradually release the material pressure, avoid local extrusion and accumulation or hollowing phenomenon, thereby significantly improving the uniformity of discharge.

[0036] The non-screw blade design of the extension rod part 22: the end is not provided with a screw blade, which can reduce the risk of material residue and reverse backflow, and ensure the continuous discharge of the material in the discharge port 102.

[0037] Adjustable motor base 42: by adjusting the installation height of the speed reducer motor 4, the coaxiality of the transmission shaft is ensured, and the vibration and power loss are reduced.

[0038] III. Work flow and principle

[0039] Feeding: the material enters the bin from the feeding port 101 at the top of the feeding bin 1.

[0040] Conveying control: the speed reducer motor 4 drives the screw rod part 21 to rotate, and the screw blade 23 gradually expands the filling rate and propulsion speed of the material under the gradually increasing diameter and pitch, thereby forming a material flow state from tight to loose.

[0041] Uniform discharge: the material in the extension rod part 22 area only moves to the discharge port 102 with the rotational inertia, avoiding end extrusion.

[0042] Multiple screw cooperation: when multiple screw 2 is used, each screw blade 23 rotates synchronously, covers different areas of the feeding bin 1, and eliminates the conveying dead angle.

[0043] It has to be noted that, as used herein, such terms as "including", "including a", "having", "comprising", "containing", or any other similar term are intended to be encompassing for a passage, a method, an article, or an apparatus that fails to explicitly disclose separate instances of the listed elements. In other words, such terms are to be interpreted in the context as specifying instances of the listed elements but do not preclude the presence of additional elements in the passage, the method, the article, or the apparatus that are either listed elements or additional elements inherent to such passage, method, article, or apparatus.

[0044] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A silo unloading screw apparatus, characterized in that, Including taking material warehouse, taking material screw, bearing seat and speed reducer motor;The top surface of the taking material warehouse is open as the feed inlet, and the bottom surface is provided with the discharge port at one end;The taking material screw is placed in the lower cavity of the taking material warehouse, and the both ends thereof are installed on the bearing seat through the wall respectively;The taking material screw includes screw rod part and extension rod part, the screw rod part is provided with spiral blade, the diameter and the pitch of the spiral blade are stepped up along the feeding direction, the extension rod part is located at the end of the feeding direction, and no spiral blade is arranged;The speed reducer motor is connected with the front end of the screw rod part of the taking material screw through the shaft coupling, and drives the rotation thereof.

2. A silo auger as claimed in claim 1, wherein, A plurality of taking material screws are arranged in parallel in the taking material warehouse, and are equidistantly arranged, and the spiral blades of all the taking material screws are consistent in rotation direction.

3. A silo auger as claimed in claim 2, wherein, The speed reducer motor is one-to-one corresponding to the taking material screw.

4. The silo auger of claim 1, wherein, The both sides of the taking material warehouse are provided with shaft seat bosses, and the bearing seat is fixed on the shaft seat boss.

5. The silo auger of claim 1, wherein, The speed reducer motor is fixed on an adjustable height motor base, and the coaxiality of the transmission shaft is ensured.

6. The silo auger of claim 1, wherein, The diameter of the spiral blade of the taking material screw is provided with four stepped increments, which are 400mm, 430mm, 460mm and 500mm respectively.

7. The silo auger of claim 1, wherein, The pitch of the spiral blade of the taking material screw is provided with four stepped increments, which are 300mm, 350mm, 400mm and 450mm respectively.

8. The silo auger of claim 1, wherein, The taking material warehouse includes a plurality of supporting columns, so that the discharge port is kept a distance from the ground.

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