Universal joint type screw conveyor blade structure

By designing the blade structure of the universal joint spiral machine, the deformation and degradation of slag discharge performance caused by uneven stress when dealing with slag soil is solved, and efficient and stable working performance and the effect of reducing maintenance costs is achieved.

CN222906677UActive Publication Date: 2025-05-27CHINA RAILWAY 14TH BUREAU GROUP EQUIPMENT CO LTD
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Patent Information

Application Number
CN202421851649.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-01
Publication Date
2025-05-27
Estimated Expiration
2034-08-01

AI Technical Summary

Technical Problem

When dealing with slag, existing screw machines have uneven stresses caused by hard objects in the slag, which reduces slag discharge performance and even causes fracture, increasing maintenance costs and time.

Method used

A universal joint spiral machine blade structure is designed, including a cylinder, a multi-joint spiral blade, a spiral shaft and two universal joint heads. The spiral shaft is divided into three sections. The universal joint head is connected by an inner sleeve, an outer sleeve and a cross shaft to achieve power transmission and flexible rotation, and adapt to deformation in different axial directions.

Benefits of technology

Through the flexibility of the universal joint and the conveying function of the spiral blades, efficient and stable working performance under uneven soft and hard slag soil and deformation of the spiral shaft is achieved, reducing maintenance costs and time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of screw conveyors, in particular to a universal joint type screw conveyor blade structure, which comprises a barrel body, a plurality of sections of screw blades, a screw shaft and two universal joints, the screw shaft is divided into three sections which are sequentially arranged inside the barrel body, the plurality of sections of screw blades are respectively arranged on the corresponding screw shaft, and the two universal joints are arranged on the barrel body. The two universal joints are arranged at the two ends of the middle spiral shaft correspondingly so that the middle spiral shaft can transmit power, drive the spiral blades to rotate and further convey muck, and the two universal joints can rotate so that the universal joints can freely rotate in the different axis directions. Therefore, transmission under the conditions that a long spiral shaft or a barrel body deforms, muck is uneven in hardness and the like is achieved, and through the structural arrangement, the flexibility of the universal joint and the conveying function of the spiral blade are combined.
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Description

Technical Field

[0001] The utility model relates to the technical field of screw conveyors, in particular to a universal joint type screw conveyor blade structure. Background Art

[0002] When dealing with muck, at present, a screw conveyor is set to convey the muck, which can improve the muck treatment efficiency without manual handling.

[0003] However, in the above-mentioned prior art, when the screw conveyor deals with muck during construction, since the muck may contain hard objects such as stones and steel bars, it will cause uneven stress and deformation of the screw shaft or blades, resulting in a decrease in the slag discharge performance, and even cause the screw shaft to break, increasing the maintenance cost and time. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a universal joint type screw conveyor blade structure, which solves the problem that in the prior art, when the screw conveyor deals with muck during construction, since the muck may contain hard objects such as stones and steel bars, it will cause uneven stress and deformation of the screw shaft or blades, resulting in a decrease in the slag discharge performance, and even cause the screw shaft to break, increasing the maintenance cost and time.

[0005] To achieve the above purpose, the utility model provides a universal joint type screw conveyor blade structure, which includes a cylinder body, multiple sections of screw blades, a screw shaft and two universal joint heads. The screw shaft is divided into three sections in total and is sequentially arranged inside the cylinder body. Multiple sections of the screw blades are respectively arranged on the corresponding screw shafts, and the two universal joint heads are respectively arranged at both ends of the middle screw shaft.

[0006] Wherein, the universal joint head includes an inner sleeve, an outer sleeve and a cross shaft, and the inner sleeve and the outer sleeve are connected by the cross shaft.

[0007] Wherein, the cylinder body has a discharge port.

[0008] Wherein, one ends of the two screw shafts are respectively fixedly connected to the corresponding inner sleeve and the corresponding outer sleeve.

[0009] Wherein, the other ends of the two screw shafts are both arranged inside the cylinder body.

[0010] A universal joint type screw machine blade structure of the present utility model connects two universal joint heads through a screw shaft so as to be able to transmit power, and protects and supports internal components through a cylinder body. The screw shaft rotates to drive the screw blade to rotate, thereby conveying muck. The two universal joint heads can rotate, enabling the universal joint to freely rotate in different axial directions, so as to achieve transmission under the conditions of deformation of the relatively long screw shaft or the cylinder body, uneven hardness of muck, etc. Through the above structural settings, the flexibility of the universal joint and the conveying function of the screw blade are combined. During operation, relying on its unique design principle, high-efficiency and stable working performance are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0012] Figure 1 It is a schematic structural diagram of the whole of the present utility model.

[0013] Figure 2 It is of the present utility model Figure 1 Partial enlarged structural view of part A.

[0014] 1 - cylinder body, 2 - screw blade, 3 - screw shaft, 4 - discharge port, 5 - inner sleeve, 6 - outer sleeve, 7 - cross shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.

[0016] Please refer to Figure 1 and Figure 2 wherein Figure 1 is a schematic structural diagram of the whole of the present utility model, Figure 2 is of the present utility model Figure 1 Partial enlarged structural view of part A. The present utility model provides a universal joint type screw machine blade structure, including a cylinder body 1, multiple sections of screw blades 2, a screw shaft 3 and two universal joint heads. The screw shaft 3 is divided into three sections in total and is sequentially arranged inside the cylinder body 1. Multiple sections of the screw blades 2 are respectively arranged on the corresponding screw shafts 3. The two universal joint heads are respectively arranged at both ends of the middle screw shaft 3.

[0017] In this embodiment, two universal joint heads are connected by the spiral shaft 3 so that power can be transmitted. The cylindrical body 1 protects and supports the internal components. When the spiral shaft 3 rotates, it drives the spiral blade 2 to rotate, thereby conveying muck. The two universal joint heads can rotate, enabling the universal joint to freely rotate in different axial directions, thus realizing power transmission in the case of deformation of the relatively long spiral shaft 3 or the cylindrical body 1, uneven hardness of the muck, etc. Therefore, the flexibility of the universal joint and the conveying function of the spiral blade 2 are combined. During operation, relying on its unique design principle, high-efficiency and stable working performance are achieved;

[0018] Before starting the implementation, first, the structure of the spiral blade 2 needs to be designed according to the actual application requirements; according to the usage environment and requirements of the spiral blade 2 structure, select a suitable type of universal joint. To ensure the strength and durability of the spiral blade 2 structure and the universal joint, high-quality materials should be selected for manufacturing; assemble the spiral shaft 3 and the universal joint to ensure that the connection between them is firm and reliable; during the assembly process, pay attention to checking the fit clearance and fastening degree of each component to ensure the stability and reliability of the structure; after the assembly is completed, debug the structure to check whether its rotation is flexible and stable, and whether there are abnormal noises or vibrations, etc.; after the assembly and debugging are completed, performance testing of the structure is a necessary step; by simulating the actual working environment and load conditions, test the indexes such as the conveying efficiency, torque transmission performance, and wear resistance of the structure; the test results will serve as an important basis for evaluating the structure performance; according to the results of the performance test, evaluate the performance of the structure and make subsequent improvements to gradually improve the performance and usage effect of the structure; on-site maintenance of the universal joint can be carried out through the inspection opening provided by the auger.

[0019] Further, the universal joint head includes an inner sleeve 5, an outer sleeve 6, and a cross shaft 7, and the inner sleeve 5 and the outer sleeve 6 are connected by the cross shaft 7.

[0020] In this embodiment, when the universal joint rotates, the inner sleeve 5 and the outer sleeve 6 rotate on the cross shaft 7.

[0021] Further, the cylindrical body 1 has a discharge port 4.

[0022] In this embodiment, the discharge port 4 can discharge muck.

[0023] Further, one ends of the two spiral shafts 3 are respectively fixedly connected to the corresponding inner sleeve 5 and the corresponding outer sleeve 6.

[0024] Further, the other ends of the two spiral shafts 3 are both arranged inside the cylindrical body 1.

[0025] The above disclosure is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A universal joint type screw machine blade structure, characterized in that: It includes a cylinder, multi-section spiral blades, a spiral shaft and two universal joint heads. The spiral shaft is divided into three sections and is sequentially arranged inside the cylinder. The multi-section spiral blades are respectively arranged on the corresponding spiral shafts, and the two universal joint heads are respectively arranged at the two ends of the middle spiral shaft.

2. The universal joint type screw machine blade structure according to claim 1, characterized in that: The universal joint head comprises an inner sleeve, an outer sleeve and a cross shaft, and the inner sleeve and the outer sleeve are connected through the cross shaft.

3. The universal joint type screw machine blade structure according to claim 2, characterized in that: The cylinder body has a discharge port.

4. The universal joint type screw machine blade structure according to claim 3, characterized in that: One end of the two spiral shafts is fixedly connected to the corresponding inner sleeve and the corresponding outer sleeve respectively.

5. The universal joint type screw machine blade structure according to claim 4, characterized in that: The other ends of the two spiral shafts are both arranged inside the cylinder.