Durable screw feeder
By setting annular and radial ridge structures on the spiral blades and combining them with a high-strength drive system, the problem of easy damage to the spiral blades is solved, thus improving the durability and economy of the screw feeder.
Patent Information
- Application Number
- CN202423314101.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The spiral blades of existing screw feeders are easily damaged by wear and compression, resulting in a short service life. Furthermore, existing reinforcement measures are costly and have limited effectiveness.
The design incorporates annular and radial ridges on the helical blades to enhance blade strength and reduce blade wear through the coal accumulation area. A high-strength drive system is used to match the wear requirements of the blades.
This improves the durability and service life of the spiral blades, reduces the wear rate, and enhances the economy and reliability of the equipment.
Smart Images
Figure CN223560495U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to mechanical equipment field especially relates to a durable screw feeder. BACKGROUND
[0002] The core components of the screw feeder are a spiral body, a shell, a driving system and a support bracket. The spiral body is the main feeding driving component, and the structural integrity of the spiral blades on the spiral body directly affects the feeding capacity.
[0003] Since the spiral blades realize the conveying by extruding and wearing the coal, the wear and extrusion of the spiral blades are very large. The ordinary welded spiral body cannot withstand the wear and extrusion for a long time, and the blade will soon break, and even the whole circle of the blade will fall off.
[0004] The current coping method is to increase the structural strength of the spiral body unilaterally. The high-power screw feeder usually adopts a cast spiral body, and uses the hardest alloy plate such as NM400 or NM500 to make it.
[0005] The current solution not only increases the cost of the screw feeder, but also does not completely solve the damage of wear and extrusion to the blade, so that the service life and economy of the screw feeder product are always low. SUMMARY
[0006] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a durable screw feeder. By the new blade structure, the material to be conveyed is used as the intermediate medium, which can greatly reduce the wear rate of the blade body, and at the same time, the structural strength of the spiral blade is enhanced, so as to improve the overall life of the spiral body.
[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a durable screw feeder, comprising a spiral body, a driving system, a shell body and a support base, the spiral body is arranged in the shell body, one end of the spiral body is connected to the driving system, the driving system and the shell body are fixed on the support base, the spiral body comprises a spiral shaft and a spiral blade surrounding the spiral shaft, the spiral blade is provided with an annular ridge and a plurality of radial ridges on one side in the conveying direction, the annular ridge is arranged at the edge of the spiral blade, one end of the radial ridge is connected with the spiral shaft, and the other end extends to the edge of the spiral blade, one side of the radial ridge is in contact with the spiral blade, and a plurality of radial ridges are uniformly distributed on the spiral blade.
[0008] In the above technical scheme, the spiral blade has a plurality of annular ridges, and the spacing between different annular ridges is not more than 300mm.
[0009] In the above technical solution, the height of the annular ridge and the radial ridge is the same and not less than 50mm, and the width of the annular ridge and the radial ridge is not less than 10mm.
[0010] In the above technical solution, the angle between adjacent radial ridges is 60°.
[0011] In the above technical solution, the drive system is composed of a motor, a reducer, and a coupling connected in series. The reducer must be selected with a coefficient of 2.0 or higher.
[0012] The beneficial effects of this utility model are: 1. The structure of the annular ridge and the radial ridge causes coal to be stored on the conveying side of the spiral blade. During operation, the stored coal and the conveyed coal rub against each other, reducing wear on the spiral blade; 2. The structure of the annular ridge and the radial ridge greatly strengthens the spiral blade and ensures its service life; 3. It is economical, practical and feasible. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 for Figure 1 Structural view of the helical body.
[0015] Figure 3 for Figure 2 The right view.
[0016] The components are: 1. drive system, 2. outer shell, 3. spiral body, 4. support base, 5. annular ridge, 6. radial ridge, 7. spiral blades, 8. spiral shaft, and 9. material storage area. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] like Figures 1 to 3 A durable screw feeder is shown, comprising a screw body 3, a drive system 1, a housing 2, and a support base 4. The screw body 3 is inserted inside the housing 2, and one end of the screw body 3 is connected to the drive system 1. Both the drive system 1 and the housing 2 are fixed on the support base 4. The screw body 3 includes a screw shaft 8 and screw blades 7 surrounding the screw shaft 8. The screw blades 7 have an annular ridge 5 and several radial ridges 6 on one side in the conveying direction. The annular ridge 5 is arranged at the edge of the screw blades. One end of the radial ridge 6 is connected to the screw shaft 8, and the other end extends to the edge of the screw blades 7. One side of the radial ridge 6 contacts the screw blades 7, and several radial ridges 6 are evenly distributed on the screw blades 7.
[0019] The utility model discloses a spiral blade 7 rotates and will have coal material to become coal material storage area 9 in the sector area between annular ridge 5 and radial ridge 6, these coal storage will rotate with spiral blade 7 synchronously, will not be transported to the front, and the coal material in other shell body 2 will be pushed to the front and complete the transportation by these coal material fixed on spiral blade 7, because coal storage replaces spiral blade 7 and is abraded, makes the abrasion of spiral blade body reduce a lot, simultaneously annular ridge 5 and radial ridge 6 form frame structure on spiral blade 7, greatly strengthen the overall strength and durability of spiral blade 7.
[0020] In the above technical solution, the height of the annular ridge 5 and the radial ridge 6 is the same and is not less than 50 mm, and the width of the annular ridge 5 and the radial ridge 6 is not less than 10 mm, which ensures that the annular ridge and the radial ridge have sufficient strength and functional structure.
[0021] In the above technical solution, the spiral blade has a plurality of annular ridges, and the distance between different annular ridges is not more than 300 mm. The same annular ridge 5 maintains the same distance from the spiral shaft 8, and the plurality of annular ridges, i.e., concentric spiral structures with different radii, limit the area of the sector area surrounded by the annular ridge and the radial ridge, and ensure that the coal stored in the sector area has a certain amount, so that the coal storage realizes the function of replacing the spiral blade to be abraded.
[0022] In the above technical solution, the angle between adjacent radial ridges 6 is 60°.
[0023] In the above technical solution, the driving system 1 is formed by connecting a motor, a speed reducer, and a shaft coupling in series, and the speed reducer needs to select a specification with a use coefficient of 2.0 or more. The spiral blade 7 of this structure has increased friction with coal, and the driving system needs to consider strong thrust overload capacity, so the use coefficient of the speed reducer must be higher than that of ordinary specifications to ensure equipment operation. After comprehensive consideration, the specification with a use coefficient of 2.0 or more is more reasonable.
[0024] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model.
Claims
1. A durable screw feeder, comprising a screw body, a drive system, a housing, and a support base, wherein the screw body is disposed within the housing, one end of the screw body is connected to the drive system, and both the drive system and the housing are fixedly placed on the support base; the screw body includes a screw shaft and helical blades surrounding the screw shaft, characterized in that: The spiral blade has an annular ridge and several radial ridges on one side of the conveying direction. The annular ridge is arranged at the edge of the spiral blade. One end of the radial ridge is connected to the spiral shaft, and the other end extends to the edge of the spiral blade. One side of the radial ridge is in contact with the spiral blade. Several radial ridges are evenly distributed on the spiral blade.
2. The durable screw feeder according to claim 1, characterized in that: The spiral blade has several annular ridges, and the distance between different annular ridges does not exceed 300mm.
3. The durable screw feeder according to claim 2, characterized in that: The annular ridge and the radial ridge have the same height and are not less than 50 mm, and the width of the annular ridge and the radial ridge is not less than 10 mm.
4. The durable screw feeder according to claim 1, characterized in that: The angle between adjacent radial ridges is 60°.
5. The durable screw feeder according to claim 1, characterized in that: The drive system consists of a motor, a reducer, and a coupling connected in series. The reducer must be selected with a coefficient of 2.0 or higher.