Blade anti-deformation device of shaftless screw conveyor

By installing guide rollers on the blade edges of the shaftless screw conveyor, the problem of blade deformation was solved, enabling stable operation and efficient production of the equipment.

CN224076369UActive Publication Date: 2026-04-03TAIAN SANLI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

When conveying heavy materials, the blades of existing shaftless screw conveyors are prone to deformation or breakage, leading to equipment instability and increasing maintenance costs and downtime.

Method used

Guide rollers are installed at the edge of the helical blades to counteract the stress caused by blade deformation and prevent further deformation and tearing.

Benefits of technology

It effectively extends blade life, reduces equipment failures, improves operational stability and production efficiency, and reduces maintenance frequency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a blade anti-deformation device of a shaftless screw conveyer, and belongs to the technical field of shaftless screw conveying. Comprising a chassis; the machine shell is fixedly connected to the bottom frame; blades are rotationally connected into the machine shell. The device further comprises a driving motor; the driving end of the driving motor is fixedly connected with the blades; the bottom frame is fixedly connected with a guide mechanism; according to the utility model, the guide roller is arranged at the edge of the spiral blade, so that when the blade tilts or deforms due to factors such as increase of material density, the guide roller can be in contact with the blade in time and rotate along with the blade; therefore, stress generated by deformation of the spiral blade is effectively counteracted, further deformation of the blade is avoided, the phenomenon that the blade is torn is effectively reduced, and the service life of the blade is prolonged. Meanwhile, deformation of the blades is effectively restrained through the guide rollers, the problem that the whole spiral body is not concentric due to the deformation of the blades is solved, and abnormal abrasion between the spiral body and a machine shell is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of shaftless screw conveyor technology, and in particular to a blade anti-deformation device for a shaftless screw conveyor. Background Technology

[0002] In modern industrial production and material handling, screw conveyors are widely used as an important conveying device. Among them, shaftless screw conveyors, with their unique structural advantages, perform exceptionally well in conveying viscous materials, materials containing impurities, or in scenarios where it is necessary to prevent materials from becoming entangled in the shaft. However, current shaftless screw conveyors face numerous problems in actual operation.

[0003] Existing shaftless screw conveyors typically rely on a drive shaft to rotate the entire screw body to transport materials. To enhance structural strength, some designs use segmented screw bodies, such as through flange connections or separate blades. However, this does not fundamentally solve the key problem: in terms of load bearing, a common solution is to use bearing housings with self-aligning roller bearings. However, this combination has the drawback of easy wear of seals, leading to dust leakage. This not only pollutes the working environment but also accelerates the wear of other parts of the equipment, increasing equipment maintenance costs.

[0004] In existing shaftless screw conveyors, all stress points are concentrated on the screw blades during operation. If the blade thickness is not designed properly, the shaft spacing is too small, or the pipe diameter is not selected correctly, the blades are prone to deformation or even breakage under the pressure of the material. Especially when conveying heavy materials, screw deformation and misalignment failures occur frequently. This not only affects the normal conveying of materials, but also requires frequent equipment calibration, which may reduce production efficiency and increase equipment downtime and maintenance costs. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a blade anti-deformation device for a shaftless screw conveyor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A blade deformation prevention device for a shaftless screw conveyor, comprising:

[0008] Base frame;

[0009] The casing is fixedly connected to the base frame;

[0010] Blades are rotatably connected to the housing;

[0011] It also includes the drive motor;

[0012] The drive end of the drive motor is fixedly connected to the blade;

[0013] A guide mechanism is fixedly connected to the base frame.

[0014] Preferably, the guiding mechanism includes a guide roller and a rotating shaft, a mounting plate is fixedly connected to the base frame, the rotating shaft is fixedly connected to the mounting plate, and the guide roller is rotatably connected to the rotating shaft.

[0015] Furthermore, the guide mechanism is provided in multiple sets, and the multiple sets of the guide mechanism are evenly distributed on the base frame.

[0016] Furthermore, a feed pipe is fixedly connected to the housing.

[0017] Furthermore, an inspection port is provided on the housing.

[0018] Preferably, a connecting plate is fixedly connected to the base frame, and the connecting plate is fixedly connected to the housing.

[0019] Furthermore, the length of the guide roller is 1-2m.

[0020] Compared with the prior art, this utility model provides a blade anti-deformation device for a shaftless screw conveyor, which has the following beneficial effects:

[0021] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention, by setting guide rollers at the edge of the spiral blades, ensures that when factors such as increased material density cause the blades to warp or deform, the guide rollers promptly contact the blades and rotate accordingly. This effectively counteracts the stress generated by the deformation of the spiral blades, preventing further deformation and effectively reducing blade tearing, thus extending the blades' service life. Simultaneously, the effective suppression of blade deformation by the guide rollers avoids the problem of overall misalignment of the spiral body caused by blade deformation, reducing abnormal wear between the spiral body and the casing. This makes the equipment more stable and reliable during operation, reduces the frequency of equipment failures, decreases the number of equipment calibrations, and improves the continuous operating time and production efficiency of the equipment. Attached Figure Description

[0022] Figure 1 This invention provides a schematic diagram of the structure of an anti-deformation device for the blades of a shaftless screw conveyor. Figure 1 ;

[0023] Figure 2 A schematic diagram of the structure of an anti-deformation device for the blades of a shaftless screw conveyor proposed in this utility model. Figure 2 ;

[0024] Figure 3 This utility model proposes a blade anti-deformation device for a shaftless screw conveyor. Figure 2Enlarged view of part A in the image.

[0025] In the diagram: 1. Casing; 101. Feed pipe; 102. Inspection port; 103. Mounting plate; 1031. Rotating shaft; 104. Connecting plate; 2. Drive motor; 3. Blade; 4. Guide roller; 5. Base frame. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example:

[0028] Reference Figures 1-3 A blade anti-deformation device for a shaftless screw conveyor, comprising:

[0029] Base frame 5;

[0030] The housing 1 is fixedly connected to the base frame 5;

[0031] Blades 3 are rotatably connected within the housing 1;

[0032] It also includes drive motor 2;

[0033] The drive end of the drive motor 2 is fixedly connected to the blade 3;

[0034] A guide mechanism is fixedly connected to the base frame 5.

[0035] The guiding mechanism includes guide rollers 4 and a rotating shaft 1031. A mounting plate 103 is fixedly connected to the base frame 5, and the rotating shaft 1031 is fixedly connected to the mounting plate 103. The guide rollers 4 and the rotating shaft 1031 are rotatably connected.

[0036] The guide mechanism is provided in multiple sets, and the multiple sets of guide mechanisms are evenly distributed on the base frame 5.

[0037] A feed pipe 101 is fixedly connected to the housing 1.

[0038] The feed pipe 101 installed on the housing 1 facilitates the entry of materials into the screw conveyor.

[0039] Reference Figures 1-3Before actual use, place the base frame 5 stably in the predetermined working position to ensure it is stable and does not shake; fix the mounting plate 103 on the base frame 5, then install the rotating shaft 1031 on the mounting plate 103, and then install the guide roller 4 on the rotating shaft 1031 so that the guide roller 4 can rotate flexibly; install the housing 1 on the base frame 5, and fix it to the housing 1 through the connecting plate 104 on the base frame 5 to ensure the stability of the housing 1; install and fix the drive motor 2, and fix its drive end to the blade 3 to complete the overall installation and debugging of the equipment.

[0040] Reference Figures 1-3 In practical use, the drive motor 2 is started, and the drive end of the drive motor 2 drives the blades 3 to rotate inside the housing 1. The material enters the housing 1 through the feed pipe 101. As the blades 3 continue to rotate, the material is conveyed along the axial direction of the housing 1 under the pushing action of the blades 3.

[0041] Reference Figures 1-3 During the material conveying process, when the material density increases, the blade 3 may be subjected to greater pressure, which may lead to warping or deformation. When the blade 3 is deformed, its edge will come into contact with the guide roller 4. Since the guide roller 4 is rotatably connected to the mounting plate 103 mounted on the base frame 5 through the rotating shaft 1031, the guide roller 4 will rotate together with the blade 3.

[0042] It should be noted that the guide roller 4 is made of round steel, which has high strength and can effectively offset the stress generated when the spiral blade 3 deforms, thereby preventing the blade 3 from deforming further and ensuring that the blade 3 maintains its normal shape under complex working conditions and can continuously and stably carry out material conveying work.

[0043] The housing 1 has an inspection port 102.

[0044] The inspection port 102 provided on the casing 1 facilitates the staff to inspect, clean, and maintain the inside of the equipment, and can also be used to observe the internal material conveying.

[0045] A connecting plate 104 is fixedly connected to the base frame 5, and the connecting plate 104 is fixedly connected to the housing 1.

[0046] This invention utilizes guide rollers 4 at the edge of the spiral blade 3. When factors such as increased material density cause the blade 3 to warp or deform, the guide rollers 4 promptly contact the blade 3 and rotate accordingly. This effectively counteracts the stress generated by the deformation of the spiral blade 3, preventing further deformation and reducing tearing, thus extending its service life. Simultaneously, the effective suppression of blade deformation by the guide rollers 4 avoids overall misalignment of the spiral body caused by blade deformation, reducing abnormal wear between the spiral body and the casing 1. This makes the equipment more stable and reliable during operation, lowers the frequency of equipment failures, reduces the number of calibrations, and improves continuous operating time and production efficiency.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A blade deformation prevention device of a shaftless screw conveyor, characterized by, Include: Chassis (5); The casing (1) is fixedly connected to the chassis (5); The casing (1) is rotatably connected with the blade (3); Also includes driving motor (2); The driving end of the driving motor (2) is fixedly connected with the blade (3); The chassis (5) is fixedly connected with the guide mechanism.

2. A blade anti-deformation device of a shaftless screw conveyor according to claim 1, characterized in that, The guide mechanism includes guide roller (4) and rotating shaft (1031), the chassis (5) is fixedly connected with the mounting plate (103), the rotating shaft (1031) is fixedly connected to the mounting plate (103), the guide roller (4) is rotatably connected with the rotating shaft (1031).

3. A blade anti-deformation device of a shaftless screw conveyor according to claim 2, characterized in that, The guide mechanism is provided with multiple groups, and multiple groups of the guide mechanism are uniformly distributed on the chassis (5).

4. A blade anti-deformation device of a shaftless screw conveyor according to claim 1, characterized in that, The casing (1) is fixedly connected with the feeding pipe (101).

5. A blade anti-deformation device for a shaftless screw conveyor according to claim 4, characterized in that, The casing (1) is provided with an access hole (102).

6. A blade anti-deformation device of a shaftless screw conveyor according to claim 4, characterized in that, The chassis (5) is fixedly connected with the connecting plate (104), and the connecting plate (104) is fixedly connected with the casing (1).

7. A blade anti-deformation device of a shaftless screw conveyor according to claim 2, characterized in that, The length of the guide roller (4) is 1-2m.