Large extruder screw inspection tool

By designing a large extruder screw inspection fixture, utilizing a support base and a rotatable support shaft, the operational difficulties of inspecting large extruder screws were solved, enabling convenient inspection of the screw surface and meshing clearance.

CN223741436UActive Publication Date: 2025-12-30NANJING RUIYA EXTRUSION SYST LTD
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Patent Information

Application Number
CN202422866389.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-12-30
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

Screw inspection in large extruders is limited; operators cannot manually rotate the screw to check its surface roughness and meshing clearance, and existing equipment cannot effectively support and rotate long screws.

Method used

Design a large extruder screw inspection fixture, including a support base and an axially rotatable support shaft. The interlayer is used to support the screw, and the rotation of the support shaft drives another screw to achieve the inspection of the screw surface and meshing clearance.

Benefits of technology

It enables convenient inspection of large extruder screws, allowing rotation and inspection of the screw's outer surface and meshing clearance, thus solving the operational challenges of inspecting long screws.

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Abstract

The utility model provides a large-scale extruder screw rod inspection tool, which relates to the field of screw rod detection and comprises a supporting seat, the supporting seat is provided with a plurality of supporting shafts, and the supporting shafts can axially rotate; an interlayer is arranged between the supporting shafts and is used for supporting the screw rod; according to the utility model, when any one of the two screw rods is rotated, the supporting shaft for supporting the two screw rods simultaneously drives the other screw rod to rotate, so that personnel can conveniently check the outer surfaces of the screw rods and the meshing clearance between the screw rods.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of screw detection, especially a large extruder screw inspection tool. BACKGROUND

[0002] The screw configured by the small extruder is light in weight and short in length, and the operator only needs to place it on the water platform to manually rotate and check. However, the screw of the large extruder is heavy in overall load and long in length, and the workbench is limited to being placed on the sleeper, and the operator cannot manually rotate the screw to check the surface roughness and meshing gap, and the inspection is limited, so it is necessary to propose a special inspection tool for the screw used by the large extruder. SUMMARY

[0003] The utility model discloses a large extruder screw inspection tool to solve the above technical problem.

[0004] The utility model discloses a large extruder screw inspection tool to solve the above technical problem.

[0005] A large extruder screw inspection tool, comprising a support seat, the support seat is provided with a plurality of support shafts, the support shafts can rotate in the axial direction.

[0006] The support shafts are sandwiched, and the sandwich is used to support the screw.

[0007] Two screws are arranged in adjacent sandwiched layers, and the screws are meshed with each other.

[0008] Preferably, the two screws in adjacent sandwiched layers are supported by the support shafts between the sandwiched layers.

[0009] Preferably, rotating any one of the two screws simultaneously drives the other screw to rotate through the support shafts supporting the two screws.

[0010] Preferably, each support shaft is provided with a shaft seat arranged at the support seat to fix the end of the support shaft.

[0011] Preferably, the support shaft comprises a roller shaft for supporting the screw and a roller shaft extension at the end of the roller shaft, and the roller shaft extension is installed at the shaft seat.

[0012] The utility model has the advantages of:

[0013] In the utility model, when any one of the two screws is rotated, the support shafts supporting the two screws drive the other screw to rotate, which facilitates the personnel to check the surface of the screw and the meshing gap between the screws. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a large extruder screw inspection tool structure schematic view;

[0015] Figure 2 It is Figure 1 The inspection tool is shown in the top view;

[0016] Figure 3 It is Figure 1 The inspection tool is shown in the front view;

[0017] Figure 4 It is Figure 1 The inspection tool is shown in the side view when detecting two screws;

[0018] Figure 5 It is Figure 1 The application diagram of the inspection tool is shown;

[0019] Reference signs: 1, support seat; 2, backing plate; 3, centering plate; 4, shaft seat; 5, roller shaft; 6, roller shaft extension; 7, elastic retainer ring. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the specification of the present application herein is only for the purpose of describing specific embodiments and is not intended to limit the present application.

[0022] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0023] Example 1

[0024] In this embodiment, a large extruder screw inspection tool is proposed, please refer to Figures 1-5 The large extruder screw inspection tool includes a support seat 1 and three support shafts arranged above the support seat 1. The support seat 1 has two backing plates 2 on the top, and the backing plates 2 are provided with shaft seats 4 for fixing the ends of the support shafts. The ends of the support shafts are fixed in the shaft seats 4, so that the support shafts can rotate axially under the rolling support of the shaft seats 4.

[0025] Please refer to Figures 1-2The support shafts are sandwiched by the sandwich layers, the sandwich layers are used for supporting the screw rods, it is further illustrated that the screw rod arranged in the two sandwich layers is screw rod A and screw rod B which are engaged with each other, it is further illustrated that the screw rod A and the screw rod B located in the adjacent sandwich layers are supported by the support shafts between the sandwich layers, in this way, when any one of the two screw rods is rotated, the support shafts supporting the two screw rods will drive the other screw rod to rotate, thereby facilitating the personnel to check the outer surface of the screw rod and the engagement gap between the screw rods.

[0026] Please refer to Figures 1-3 In the embodiment, the support shafts include roller shafts 5 used for supporting the screw rods and roller shaft extension parts 6 located at the end of the roller shafts 5, the roller shaft extension parts 6 are installed at the shaft seats 4.

[0027] Please continue to refer to Figures 1-3 The roller shaft extension parts 6 extend outward relative to the shaft seats 4, the outward extending parts are boxed by the centering plates 3 shown in Figure 1 It is further illustrated that please refer to Figure 5 The screw rods extend outward relative to the support seats 1, in order to avoid the interference caused by the centering plates 3 to the extension of the screw rods, the recesses are arranged at the positions corresponding to the extension of the screw rods at the centering plates 3.

[0028] Please refer to Figure 3 The outward extending parts of the roller shaft extension parts 6 relative to the shaft seats 4 are provided with elastic retaining rings 7, the elastic retaining rings 7 are located at the lateral positions of the centering plates 3, and the elastic retaining rings 7 prevent the roller shafts 5 from deviating in the rolling.

[0029] The technical features of the above-described embodiments can be combined arbitrarily, in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that the combinations are within the scope of the description.

[0030] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, on the premise of not departing from the concept of the utility model, a plurality of modifications and improvements can be made, these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A large extruder screw inspection tooling characterized by: The support seat is provided with a plurality of support shafts which can rotate axially; The support shafts are sandwiched by a sandwich layer which is used to support the screw rods; Each support shaft is provided with a shaft seat which is arranged at the support seat and is used to fix the end of the support shaft, the support shaft comprises a roller shaft which is used to support the screw rod and a roller shaft extension which is arranged at the end of the roller shaft and is installed at the shaft seat; The roller shaft extension extends outwardly relative to the shaft seat, the outwardly extending part is sleeved by a centering plate, the outwardly extending part of the roller shaft extension relative to the shaft seat is provided with an elastic retainer ring which abuts against the lateral position of the centering plate; Two screw rods are arranged in the adjacent sandwich layers, the screw rods are engaged with each other, when one of the screw rods is rotated, the outer surface of the screw rod and the engagement gap between the screw rods are checked.

2. A large extruder screw inspection tooling as defined in claim 1, characterized in that: The two screw rods in the adjacent sandwich layers are supported by the support shafts between the sandwich layers.

3. A large extruder screw inspection tooling as defined in claim 2, characterized in that: When any one of the two screw rods is rotated, the support shafts which support the two screw rods will drive the other screw rod to rotate.